/** * Class for generating SQL clauses that filter a primary query according to date. * * WP_Date_Query is a helper that allows primary query classes, such as WP_Query, to filter * their results by date columns, by generating `WHERE` subclauses to be attached to the * primary SQL query string. * * Attempting to filter by an invalid date value (eg month=13) will generate SQL that will * return no results. In these cases, a _doing_it_wrong() error notice is also thrown. * See WP_Date_Query::validate_date_values(). * * @link https://codex.wordpress.org/Function_Reference/WP_Query Codex page. * * @since 3.7.0 */ class WP_Date_Query { /** * Array of date queries. * * See WP_Date_Query::__construct() for information on date query arguments. * * @since 3.7.0 * @access public * @var array */ public $queries = array(); /** * The default relation between top-level queries. Can be either 'AND' or 'OR'. * * @since 3.7.0 * @access public * @var string */ public $relation = 'AND'; /** * The column to query against. Can be changed via the query arguments. * * @since 3.7.0 * @access public * @var string */ public $column = 'post_date'; /** * The value comparison operator. Can be changed via the query arguments. * * @since 3.7.0 * @access public * @var array */ public $compare = '='; /** * Supported time-related parameter keys. * * @since 4.1.0 * @access public * @var array */ public $time_keys = array( 'after', 'before', 'year', 'month', 'monthnum', 'week', 'w', 'dayofyear', 'day', 'dayofweek', 'dayofweek_iso', 'hour', 'minute', 'second' ); /** * Constructor. * * Time-related parameters that normally require integer values ('year', 'month', 'week', 'dayofyear', 'day', * 'dayofweek', 'dayofweek_iso', 'hour', 'minute', 'second') accept arrays of integers for some values of * 'compare'. When 'compare' is 'IN' or 'NOT IN', arrays are accepted; when 'compare' is 'BETWEEN' or 'NOT * BETWEEN', arrays of two valid values are required. See individual argument descriptions for accepted values. * * @since 3.7.0 * @since 4.0.0 The $inclusive logic was updated to include all times within the date range. * @since 4.1.0 Introduced 'dayofweek_iso' time type parameter. * @access public * * @param array $date_query { * Array of date query clauses. * * @type array { * @type string $column Optional. The column to query against. If undefined, inherits the value of * the `$default_column` parameter. Accepts 'post_date', 'post_date_gmt', * 'post_modified','post_modified_gmt', 'comment_date', 'comment_date_gmt'. * Default 'post_date'. * @type string $compare Optional. The comparison operator. Accepts '=', '!=', '>', '>=', '<', '<=', * 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN'. Default '='. * @type string $relation Optional. The boolean relationship between the date queries. Accepts 'OR' or 'AND'. * Default 'OR'. * @type array { * Optional. An array of first-order clause parameters, or another fully-formed date query. * * @type string|array $before { * Optional. Date to retrieve posts before. Accepts `strtotime()`-compatible string, * or array of 'year', 'month', 'day' values. * * @type string $year The four-digit year. Default empty. Accepts any four-digit year. * @type string $month Optional when passing array.The month of the year. * Default (string:empty)|(array:1). Accepts numbers 1-12. * @type string $day Optional when passing array.The day of the month. * Default (string:empty)|(array:1). Accepts numbers 1-31. * } * @type string|array $after { * Optional. Date to retrieve posts after. Accepts `strtotime()`-compatible string, * or array of 'year', 'month', 'day' values. * * @type string $year The four-digit year. Accepts any four-digit year. Default empty. * @type string $month Optional when passing array. The month of the year. Accepts numbers 1-12. * Default (string:empty)|(array:12). * @type string $day Optional when passing array.The day of the month. Accepts numbers 1-31. * Default (string:empty)|(array:last day of month). * } * @type string $column Optional. Used to add a clause comparing a column other than the * column specified in the top-level `$column` parameter. Accepts * 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt', * 'comment_date', 'comment_date_gmt'. Default is the value of * top-level `$column`. * @type string $compare Optional. The comparison operator. Accepts '=', '!=', '>', '>=', * '<', '<=', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN'. 'IN', * 'NOT IN', 'BETWEEN', and 'NOT BETWEEN'. Comparisons support * arrays in some time-related parameters. Default '='. * @type bool $inclusive Optional. Include results from dates specified in 'before' or * 'after'. Default false. * @type int|array $year Optional. The four-digit year number. Accepts any four-digit year * or an array of years if `$compare` supports it. Default empty. * @type int|array $month Optional. The two-digit month number. Accepts numbers 1-12 or an * array of valid numbers if `$compare` supports it. Default empty. * @type int|array $week Optional. The week number of the year. Accepts numbers 0-53 or an * array of valid numbers if `$compare` supports it. Default empty. * @type int|array $dayofyear Optional. The day number of the year. Accepts numbers 1-366 or an * array of valid numbers if `$compare` supports it. * @type int|array $day Optional. The day of the month. Accepts numbers 1-31 or an array * of valid numbers if `$compare` supports it. Default empty. * @type int|array $dayofweek Optional. The day number of the week. Accepts numbers 1-7 (1 is * Sunday) or an array of valid numbers if `$compare` supports it. * Default empty. * @type int|array $dayofweek_iso Optional. The day number of the week (ISO). Accepts numbers 1-7 * (1 is Monday) or an array of valid numbers if `$compare` supports it. * Default empty. * @type int|array $hour Optional. The hour of the day. Accepts numbers 0-23 or an array * of valid numbers if `$compare` supports it. Default empty. * @type int|array $minute Optional. The minute of the hour. Accepts numbers 0-60 or an array * of valid numbers if `$compare` supports it. Default empty. * @type int|array $second Optional. The second of the minute. Accepts numbers 0-60 or an * array of valid numbers if `$compare` supports it. Default empty. * } * } * } * @param array $default_column Optional. Default column to query against. Default 'post_date'. * Accepts 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt', * 'comment_date', 'comment_date_gmt'. */ public function __construct( $date_query, $default_column = 'post_date' ) { if ( isset( $date_query['relation'] ) && 'OR' === strtoupper( $date_query['relation'] ) ) { $this->relation = 'OR'; } else { $this->relation = 'AND'; } if ( ! is_array( $date_query ) ) { return; } // Support for passing time-based keys in the top level of the $date_query array. if ( ! isset( $date_query[0] ) && ! empty( $date_query ) ) { $date_query = array( $date_query ); } if ( empty( $date_query ) ) { return; } if ( ! empty( $date_query['column'] ) ) { $date_query['column'] = esc_sql( $date_query['column'] ); } else { $date_query['column'] = esc_sql( $default_column ); } $this->column = $this->validate_column( $this->column ); $this->compare = $this->get_compare( $date_query ); $this->queries = $this->sanitize_query( $date_query ); } /** * Recursive-friendly query sanitizer. * * Ensures that each query-level clause has a 'relation' key, and that * each first-order clause contains all the necessary keys from * `$defaults`. * * @since 4.1.0 * @access public * * @param array $queries * @param array $parent_query * * @return array Sanitized queries. */ public function sanitize_query( $queries, $parent_query = null ) { $cleaned_query = array(); $defaults = array( 'column' => 'post_date', 'compare' => '=', 'relation' => 'AND', ); // Numeric keys should always have array values. foreach ( $queries as $qkey => $qvalue ) { if ( is_numeric( $qkey ) && ! is_array( $qvalue ) ) { unset( $queries[ $qkey ] ); } } // Each query should have a value for each default key. Inherit from the parent when possible. foreach ( $defaults as $dkey => $dvalue ) { if ( isset( $queries[ $dkey ] ) ) { continue; } if ( isset( $parent_query[ $dkey ] ) ) { $queries[ $dkey ] = $parent_query[ $dkey ]; } else { $queries[ $dkey ] = $dvalue; } } // Validate the dates passed in the query. if ( $this->is_first_order_clause( $queries ) ) { $this->validate_date_values( $queries ); } foreach ( $queries as $key => $q ) { if ( ! is_array( $q ) || in_array( $key, $this->time_keys, true ) ) { // This is a first-order query. Trust the values and sanitize when building SQL. $cleaned_query[ $key ] = $q; } else { // Any array without a time key is another query, so we recurse. $cleaned_query[] = $this->sanitize_query( $q, $queries ); } } return $cleaned_query; } /** * Determine whether this is a first-order clause. * * Checks to see if the current clause has any time-related keys. * If so, it's first-order. * * @since 4.1.0 * @access protected * * @param array $query Query clause. * @return bool True if this is a first-order clause. */ protected function is_first_order_clause( $query ) { $time_keys = array_intersect( $this->time_keys, array_keys( $query ) ); return ! empty( $time_keys ); } /** * Determines and validates what comparison operator to use. * * @since 3.7.0 * @access public * * @param array $query A date query or a date subquery. * @return string The comparison operator. */ public function get_compare( $query ) { if ( ! empty( $query['compare'] ) && in_array( $query['compare'], array( '=', '!=', '>', '>=', '<', '<=', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) return strtoupper( $query['compare'] ); return $this->compare; } /** * Validates the given date_query values and triggers errors if something is not valid. * * Note that date queries with invalid date ranges are allowed to * continue (though of course no items will be found for impossible dates). * This method only generates debug notices for these cases. * * @since 4.1.0 * @access public * * @param array $date_query The date_query array. * @return bool True if all values in the query are valid, false if one or more fail. */ public function validate_date_values( $date_query = array() ) { if ( empty( $date_query ) ) { return false; } $valid = true; /* * Validate 'before' and 'after' up front, then let the * validation routine continue to be sure that all invalid * values generate errors too. */ if ( array_key_exists( 'before', $date_query ) && is_array( $date_query['before'] ) ){ $valid = $this->validate_date_values( $date_query['before'] ); } if ( array_key_exists( 'after', $date_query ) && is_array( $date_query['after'] ) ){ $valid = $this->validate_date_values( $date_query['after'] ); } // Array containing all min-max checks. $min_max_checks = array(); // Days per year. if ( array_key_exists( 'year', $date_query ) ) { /* * If a year exists in the date query, we can use it to get the days. * If multiple years are provided (as in a BETWEEN), use the first one. */ if ( is_array( $date_query['year'] ) ) { $_year = reset( $date_query['year'] ); } else { $_year = $date_query['year']; } $max_days_of_year = date( 'z', mktime( 0, 0, 0, 12, 31, $_year ) ) + 1; } else { // otherwise we use the max of 366 (leap-year) $max_days_of_year = 366; } $min_max_checks['dayofyear'] = array( 'min' => 1, 'max' => $max_days_of_year ); // Days per week. $min_max_checks['dayofweek'] = array( 'min' => 1, 'max' => 7 ); // Days per week. $min_max_checks['dayofweek_iso'] = array( 'min' => 1, 'max' => 7 ); // Months per year. $min_max_checks['month'] = array( 'min' => 1, 'max' => 12 ); // Weeks per year. if ( isset( $_year ) ) { /* * If we have a specific year, use it to calculate number of weeks. * Note: the number of weeks in a year is the date in which Dec 28 appears. */ $week_count = date( 'W', mktime( 0, 0, 0, 12, 28, $_year ) ); } else { // Otherwise set the week-count to a maximum of 53. $week_count = 53; } $min_max_checks['week'] = array( 'min' => 1, 'max' => $week_count ); // Days per month. $min_max_checks['day'] = array( 'min' => 1, 'max' => 31 ); // Hours per day. $min_max_checks['hour'] = array( 'min' => 0, 'max' => 23 ); // Minutes per hour. $min_max_checks['minute'] = array( 'min' => 0, 'max' => 59 ); // Seconds per minute. $min_max_checks['second'] = array( 'min' => 0, 'max' => 59 ); // Concatenate and throw a notice for each invalid value. foreach ( $min_max_checks as $key => $check ) { if ( ! array_key_exists( $key, $date_query ) ) { continue; } // Throw a notice for each failing value. foreach ( (array) $date_query[ $key ] as $_value ) { $is_between = $_value >= $check['min'] && $_value <= $check['max']; if ( ! is_numeric( $_value ) || ! $is_between ) { $error = sprintf( /* translators: Date query invalid date message: 1: invalid value, 2: type of value, 3: minimum valid value, 4: maximum valid value */ __( 'Invalid value %1$s for %2$s. Expected value should be between %3$s and %4$s.' ), '' . esc_html( $_value ) . '', '' . esc_html( $key ) . '', '' . esc_html( $check['min'] ) . '', '' . esc_html( $check['max'] ) . '' ); _doing_it_wrong( __CLASS__, $error, '4.1.0' ); $valid = false; } } } // If we already have invalid date messages, don't bother running through checkdate(). if ( ! $valid ) { return $valid; } $day_month_year_error_msg = ''; $day_exists = array_key_exists( 'day', $date_query ) && is_numeric( $date_query['day'] ); $month_exists = array_key_exists( 'month', $date_query ) && is_numeric( $date_query['month'] ); $year_exists = array_key_exists( 'year', $date_query ) && is_numeric( $date_query['year'] ); if ( $day_exists && $month_exists && $year_exists ) { // 1. Checking day, month, year combination. if ( ! wp_checkdate( $date_query['month'], $date_query['day'], $date_query['year'], sprintf( '%s-%s-%s', $date_query['year'], $date_query['month'], $date_query['day'] ) ) ) { /* translators: 1: year, 2: month, 3: day of month */ $day_month_year_error_msg = sprintf( __( 'The following values do not describe a valid date: year %1$s, month %2$s, day %3$s.' ), '' . esc_html( $date_query['year'] ) . '', '' . esc_html( $date_query['month'] ) . '', '' . esc_html( $date_query['day'] ) . '' ); $valid = false; } } elseif ( $day_exists && $month_exists ) { /* * 2. checking day, month combination * We use 2012 because, as a leap year, it's the most permissive. */ if ( ! wp_checkdate( $date_query['month'], $date_query['day'], 2012, sprintf( '2012-%s-%s', $date_query['month'], $date_query['day'] ) ) ) { /* translators: 1: month, 2: day of month */ $day_month_year_error_msg = sprintf( __( 'The following values do not describe a valid date: month %1$s, day %2$s.' ), '' . esc_html( $date_query['month'] ) . '', '' . esc_html( $date_query['day'] ) . '' ); $valid = false; } } if ( ! empty( $day_month_year_error_msg ) ) { _doing_it_wrong( __CLASS__, $day_month_year_error_msg, '4.1.0' ); } return $valid; } /** * Validates a column name parameter. * * Column names without a table prefix (like 'post_date') are checked against a whitelist of * known tables, and then, if found, have a table prefix (such as 'wp_posts.') prepended. * Prefixed column names (such as 'wp_posts.post_date') bypass this whitelist check, * and are only sanitized to remove illegal characters. * * @since 3.7.0 * @access public * * @param string $column The user-supplied column name. * @return string A validated column name value. */ public function validate_column( $column ) { global $wpdb; $valid_columns = array( 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt', 'comment_date', 'comment_date_gmt', 'user_registered', 'registered', 'last_updated', ); // Attempt to detect a table prefix. if ( false === strpos( $column, '.' ) ) { /** * Filters the list of valid date query columns. * * @since 3.7.0 * @since 4.1.0 Added 'user_registered' to the default recognized columns. * * @param array $valid_columns An array of valid date query columns. Defaults * are 'post_date', 'post_date_gmt', 'post_modified', * 'post_modified_gmt', 'comment_date', 'comment_date_gmt', * 'user_registered' */ if ( ! in_array( $column, apply_filters( 'date_query_valid_columns', $valid_columns ) ) ) { $column = 'post_date'; } $known_columns = array( $wpdb->posts => array( 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt', ), $wpdb->comments => array( 'comment_date', 'comment_date_gmt', ), $wpdb->users => array( 'user_registered', ), $wpdb->blogs => array( 'registered', 'last_updated', ), ); // If it's a known column name, add the appropriate table prefix. foreach ( $known_columns as $table_name => $table_columns ) { if ( in_array( $column, $table_columns ) ) { $column = $table_name . '.' . $column; break; } } } // Remove unsafe characters. return preg_replace( '/[^a-zA-Z0-9_$\.]/', '', $column ); } /** * Generate WHERE clause to be appended to a main query. * * @since 3.7.0 * @access public * * @return string MySQL WHERE clause. */ public function get_sql() { $sql = $this->get_sql_clauses(); $where = $sql['where']; /** * Filters the date query WHERE clause. * * @since 3.7.0 * * @param string $where WHERE clause of the date query. * @param WP_Date_Query $this The WP_Date_Query instance. */ return apply_filters( 'get_date_sql', $where, $this ); } /** * Generate SQL clauses to be appended to a main query. * * Called by the public WP_Date_Query::get_sql(), this method is abstracted * out to maintain parity with the other Query classes. * * @since 4.1.0 * @access protected * * @return array { * Array containing JOIN and WHERE SQL clauses to append to the main query. * * @type string $join SQL fragment to append to the main JOIN clause. * @type string $where SQL fragment to append to the main WHERE clause. * } */ protected function get_sql_clauses() { $sql = $this->get_sql_for_query( $this->queries ); if ( ! empty( $sql['where'] ) ) { $sql['where'] = ' AND ' . $sql['where']; } return $sql; } /** * Generate SQL clauses for a single query array. * * If nested subqueries are found, this method recurses the tree to * produce the properly nested SQL. * * @since 4.1.0 * @access protected * * @param array $query Query to parse. * @param int $depth Optional. Number of tree levels deep we currently are. * Used to calculate indentation. Default 0. * @return array { * Array containing JOIN and WHERE SQL clauses to append to a single query array. * * @type string $join SQL fragment to append to the main JOIN clause. * @type string $where SQL fragment to append to the main WHERE clause. * } */ protected function get_sql_for_query( $query, $depth = 0 ) { $sql_chunks = array( 'join' => array(), 'where' => array(), ); $sql = array( 'join' => '', 'where' => '', ); $indent = ''; for ( $i = 0; $i < $depth; $i++ ) { $indent .= " "; } foreach ( $query as $key => $clause ) { if ( 'relation' === $key ) { $relation = $query['relation']; } elseif ( is_array( $clause ) ) { // This is a first-order clause. if ( $this->is_first_order_clause( $clause ) ) { $clause_sql = $this->get_sql_for_clause( $clause, $query ); $where_count = count( $clause_sql['where'] ); if ( ! $where_count ) { $sql_chunks['where'][] = ''; } elseif ( 1 === $where_count ) { $sql_chunks['where'][] = $clause_sql['where'][0]; } else { $sql_chunks['where'][] = '( ' . implode( ' AND ', $clause_sql['where'] ) . ' )'; } $sql_chunks['join'] = array_merge( $sql_chunks['join'], $clause_sql['join'] ); // This is a subquery, so we recurse. } else { $clause_sql = $this->get_sql_for_query( $clause, $depth + 1 ); $sql_chunks['where'][] = $clause_sql['where']; $sql_chunks['join'][] = $clause_sql['join']; } } } // Filter to remove empties. $sql_chunks['join'] = array_filter( $sql_chunks['join'] ); $sql_chunks['where'] = array_filter( $sql_chunks['where'] ); if ( empty( $relation ) ) { $relation = 'AND'; } // Filter duplicate JOIN clauses and combine into a single string. if ( ! empty( $sql_chunks['join'] ) ) { $sql['join'] = implode( ' ', array_unique( $sql_chunks['join'] ) ); } // Generate a single WHERE clause with proper brackets and indentation. if ( ! empty( $sql_chunks['where'] ) ) { $sql['where'] = '( ' . "\n " . $indent . implode( ' ' . "\n " . $indent . $relation . ' ' . "\n " . $indent, $sql_chunks['where'] ) . "\n" . $indent . ')'; } return $sql; } /** * Turns a single date clause into pieces for a WHERE clause. * * A wrapper for get_sql_for_clause(), included here for backward * compatibility while retaining the naming convention across Query classes. * * @since 3.7.0 * @access protected * * @param array $query Date query arguments. * @return array { * Array containing JOIN and WHERE SQL clauses to append to the main query. * * @type string $join SQL fragment to append to the main JOIN clause. * @type string $where SQL fragment to append to the main WHERE clause. * } */ protected function get_sql_for_subquery( $query ) { return $this->get_sql_for_clause( $query, '' ); } /** * Turns a first-order date query into SQL for a WHERE clause. * * @since 4.1.0 * @access protected * * @param array $query Date query clause. * @param array $parent_query Parent query of the current date query. * @return array { * Array containing JOIN and WHERE SQL clauses to append to the main query. * * @type string $join SQL fragment to append to the main JOIN clause. * @type string $where SQL fragment to append to the main WHERE clause. * } */ protected function get_sql_for_clause( $query, $parent_query ) { global $wpdb; // The sub-parts of a $where part. $where_parts = array(); $column = ( ! empty( $query['column'] ) ) ? esc_sql( $query['column'] ) : $this->column; $column = $this->validate_column( $column ); $compare = $this->get_compare( $query ); $inclusive = ! empty( $query['inclusive'] ); // Assign greater- and less-than values. $lt = '<'; $gt = '>'; if ( $inclusive ) { $lt .= '='; $gt .= '='; } // Range queries. if ( ! empty( $query['after'] ) ) { $where_parts[] = $wpdb->prepare( "$column $gt %s", $this->build_mysql_datetime( $query['after'], ! $inclusive ) ); } if ( ! empty( $query['before'] ) ) { $where_parts[] = $wpdb->prepare( "$column $lt %s", $this->build_mysql_datetime( $query['before'], $inclusive ) ); } // Specific value queries. if ( isset( $query['year'] ) && $value = $this->build_value( $compare, $query['year'] ) ) $where_parts[] = "YEAR( $column ) $compare $value"; if ( isset( $query['month'] ) && $value = $this->build_value( $compare, $query['month'] ) ) { $where_parts[] = "MONTH( $column ) $compare $value"; } elseif ( isset( $query['monthnum'] ) && $value = $this->build_value( $compare, $query['monthnum'] ) ) { $where_parts[] = "MONTH( $column ) $compare $value"; } if ( isset( $query['week'] ) && false !== ( $value = $this->build_value( $compare, $query['week'] ) ) ) { $where_parts[] = _wp_mysql_week( $column ) . " $compare $value"; } elseif ( isset( $query['w'] ) && false !== ( $value = $this->build_value( $compare, $query['w'] ) ) ) { $where_parts[] = _wp_mysql_week( $column ) . " $compare $value"; } if ( isset( $query['dayofyear'] ) && $value = $this->build_value( $compare, $query['dayofyear'] ) ) $where_parts[] = "DAYOFYEAR( $column ) $compare $value"; if ( isset( $query['day'] ) && $value = $this->build_value( $compare, $query['day'] ) ) $where_parts[] = "DAYOFMONTH( $column ) $compare $value"; if ( isset( $query['dayofweek'] ) && $value = $this->build_value( $compare, $query['dayofweek'] ) ) $where_parts[] = "DAYOFWEEK( $column ) $compare $value"; if ( isset( $query['dayofweek_iso'] ) && $value = $this->build_value( $compare, $query['dayofweek_iso'] ) ) $where_parts[] = "WEEKDAY( $column ) + 1 $compare $value"; if ( isset( $query['hour'] ) || isset( $query['minute'] ) || isset( $query['second'] ) ) { // Avoid notices. foreach ( array( 'hour', 'minute', 'second' ) as $unit ) { if ( ! isset( $query[ $unit ] ) ) { $query[ $unit ] = null; } } if ( $time_query = $this->build_time_query( $column, $compare, $query['hour'], $query['minute'], $query['second'] ) ) { $where_parts[] = $time_query; } } /* * Return an array of 'join' and 'where' for compatibility * with other query classes. */ return array( 'where' => $where_parts, 'join' => array(), ); } /** * Builds and validates a value string based on the comparison operator. * * @since 3.7.0 * @access public * * @param string $compare The compare operator to use * @param string|array $value The value * @return string|false|int The value to be used in SQL or false on error. */ public function build_value( $compare, $value ) { if ( ! isset( $value ) ) return false; switch ( $compare ) { case 'IN': case 'NOT IN': $value = (array) $value; // Remove non-numeric values. $value = array_filter( $value, 'is_numeric' ); if ( empty( $value ) ) { return false; } return '(' . implode( ',', array_map( 'intval', $value ) ) . ')'; case 'BETWEEN': case 'NOT BETWEEN': if ( ! is_array( $value ) || 2 != count( $value ) ) { $value = array( $value, $value ); } else { $value = array_values( $value ); } // If either value is non-numeric, bail. foreach ( $value as $v ) { if ( ! is_numeric( $v ) ) { return false; } } $value = array_map( 'intval', $value ); return $value[0] . ' AND ' . $value[1]; default; if ( ! is_numeric( $value ) ) { return false; } return (int) $value; } } /** * Builds a MySQL format date/time based on some query parameters. * * You can pass an array of values (year, month, etc.) with missing parameter values being defaulted to * either the maximum or minimum values (controlled by the $default_to parameter). Alternatively you can * pass a string that will be run through strtotime(). * * @since 3.7.0 * @access public * * @param string|array $datetime An array of parameters or a strotime() string * @param bool $default_to_max Whether to round up incomplete dates. Supported by values * of $datetime that are arrays, or string values that are a * subset of MySQL date format ('Y', 'Y-m', 'Y-m-d', 'Y-m-d H:i'). * Default: false. * @return string|false A MySQL format date/time or false on failure */ public function build_mysql_datetime( $datetime, $default_to_max = false ) { $now = current_time( 'timestamp' ); if ( ! is_array( $datetime ) ) { /* * Try to parse some common date formats, so we can detect * the level of precision and support the 'inclusive' parameter. */ if ( preg_match( '/^(\d{4})$/', $datetime, $matches ) ) { // Y $datetime = array( 'year' => intval( $matches[1] ), ); } elseif ( preg_match( '/^(\d{4})\-(\d{2})$/', $datetime, $matches ) ) { // Y-m $datetime = array( 'year' => intval( $matches[1] ), 'month' => intval( $matches[2] ), ); } elseif ( preg_match( '/^(\d{4})\-(\d{2})\-(\d{2})$/', $datetime, $matches ) ) { // Y-m-d $datetime = array( 'year' => intval( $matches[1] ), 'month' => intval( $matches[2] ), 'day' => intval( $matches[3] ), ); } elseif ( preg_match( '/^(\d{4})\-(\d{2})\-(\d{2}) (\d{2}):(\d{2})$/', $datetime, $matches ) ) { // Y-m-d H:i $datetime = array( 'year' => intval( $matches[1] ), 'month' => intval( $matches[2] ), 'day' => intval( $matches[3] ), 'hour' => intval( $matches[4] ), 'minute' => intval( $matches[5] ), ); } // If no match is found, we don't support default_to_max. if ( ! is_array( $datetime ) ) { // @todo Timezone issues here possibly return gmdate( 'Y-m-d H:i:s', strtotime( $datetime, $now ) ); } } $datetime = array_map( 'absint', $datetime ); if ( ! isset( $datetime['year'] ) ) $datetime['year'] = gmdate( 'Y', $now ); if ( ! isset( $datetime['month'] ) ) $datetime['month'] = ( $default_to_max ) ? 12 : 1; if ( ! isset( $datetime['day'] ) ) $datetime['day'] = ( $default_to_max ) ? (int) date( 't', mktime( 0, 0, 0, $datetime['month'], 1, $datetime['year'] ) ) : 1; if ( ! isset( $datetime['hour'] ) ) $datetime['hour'] = ( $default_to_max ) ? 23 : 0; if ( ! isset( $datetime['minute'] ) ) $datetime['minute'] = ( $default_to_max ) ? 59 : 0; if ( ! isset( $datetime['second'] ) ) $datetime['second'] = ( $default_to_max ) ? 59 : 0; return sprintf( '%04d-%02d-%02d %02d:%02d:%02d', $datetime['year'], $datetime['month'], $datetime['day'], $datetime['hour'], $datetime['minute'], $datetime['second'] ); } /** * Builds a query string for comparing time values (hour, minute, second). * * If just hour, minute, or second is set than a normal comparison will be done. * However if multiple values are passed, a pseudo-decimal time will be created * in order to be able to accurately compare against. * * @since 3.7.0 * @access public * * @param string $column The column to query against. Needs to be pre-validated! * @param string $compare The comparison operator. Needs to be pre-validated! * @param int|null $hour Optional. An hour value (0-23). * @param int|null $minute Optional. A minute value (0-59). * @param int|null $second Optional. A second value (0-59). * @return string|false A query part or false on failure. */ public function build_time_query( $column, $compare, $hour = null, $minute = null, $second = null ) { global $wpdb; // Have to have at least one if ( ! isset( $hour ) && ! isset( $minute ) && ! isset( $second ) ) return false; // Complex combined queries aren't supported for multi-value queries if ( in_array( $compare, array( 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) { $return = array(); if ( isset( $hour ) && false !== ( $value = $this->build_value( $compare, $hour ) ) ) $return[] = "HOUR( $column ) $compare $value"; if ( isset( $minute ) && false !== ( $value = $this->build_value( $compare, $minute ) ) ) $return[] = "MINUTE( $column ) $compare $value"; if ( isset( $second ) && false !== ( $value = $this->build_value( $compare, $second ) ) ) $return[] = "SECOND( $column ) $compare $value"; return implode( ' AND ', $return ); } // Cases where just one unit is set if ( isset( $hour ) && ! isset( $minute ) && ! isset( $second ) && false !== ( $value = $this->build_value( $compare, $hour ) ) ) { return "HOUR( $column ) $compare $value"; } elseif ( ! isset( $hour ) && isset( $minute ) && ! isset( $second ) && false !== ( $value = $this->build_value( $compare, $minute ) ) ) { return "MINUTE( $column ) $compare $value"; } elseif ( ! isset( $hour ) && ! isset( $minute ) && isset( $second ) && false !== ( $value = $this->build_value( $compare, $second ) ) ) { return "SECOND( $column ) $compare $value"; } // Single units were already handled. Since hour & second isn't allowed, minute must to be set. if ( ! isset( $minute ) ) return false; $format = $time = ''; // Hour if ( null !== $hour ) { $format .= '%H.'; $time .= sprintf( '%02d', $hour ) . '.'; } else { $format .= '0.'; $time .= '0.'; } // Minute $format .= '%i'; $time .= sprintf( '%02d', $minute ); if ( isset( $second ) ) { $format .= '%s'; $time .= sprintf( '%02d', $second ); } return $wpdb->prepare( "DATE_FORMAT( $column, %s ) $compare %f", $format, $time ); } } /** * WordPress Post Template Functions. * * Gets content for the current post in the loop. * * @package WordPress * @subpackage Template */ /** * Display the ID of the current item in the WordPress Loop. * * @since 0.71 */ function the_ID() { echo get_the_ID(); } /** * Retrieve the ID of the current item in the WordPress Loop. * * @since 2.1.0 * * @return int|false The ID of the current item in the WordPress Loop. False if $post is not set. */ function get_the_ID() { $post = get_post(); return ! empty( $post ) ? $post->ID : false; } /** * Display or retrieve the current post title with optional markup. * * @since 0.71 * * @param string $before Optional. Markup to prepend to the title. Default empty. * @param string $after Optional. Markup to append to the title. Default empty. * @param bool $echo Optional. Whether to echo or return the title. Default true for echo. * @return string|void Current post title if $echo is false. */ function the_title( $before = '', $after = '', $echo = true ) { $title = get_the_title(); if ( strlen($title) == 0 ) return; $title = $before . $title . $after; if ( $echo ) echo $title; else return $title; } /** * Sanitize the current title when retrieving or displaying. * * Works like the_title(), except the parameters can be in a string or * an array. See the function for what can be override in the $args parameter. * * The title before it is displayed will have the tags stripped and esc_attr() * before it is passed to the user or displayed. The default as with the_title(), * is to display the title. * * @since 2.3.0 * * @param string|array $args { * Title attribute arguments. Optional. * * @type string $before Markup to prepend to the title. Default empty. * @type string $after Markup to append to the title. Default empty. * @type bool $echo Whether to echo or return the title. Default true for echo. * @type WP_Post $post Current post object to retrieve the title for. * } * @return string|void String when echo is false. */ function the_title_attribute( $args = '' ) { $defaults = array( 'before' => '', 'after' => '', 'echo' => true, 'post' => get_post() ); $r = wp_parse_args( $args, $defaults ); $title = get_the_title( $r['post'] ); if ( strlen( $title ) == 0 ) { return; } $title = $r['before'] . $title . $r['after']; $title = esc_attr( strip_tags( $title ) ); if ( $r['echo'] ) { echo $title; } else { return $title; } } /** * Retrieve post title. * * If the post is protected and the visitor is not an admin, then "Protected" * will be displayed before the post title. If the post is private, then * "Private" will be located before the post title. * * @since 0.71 * * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post. * @return string */ function get_the_title( $post = 0 ) { $post = get_post( $post ); $title = isset( $post->post_title ) ? $post->post_title : ''; $id = isset( $post->ID ) ? $post->ID : 0; if ( ! is_admin() ) { if ( ! empty( $post->post_password ) ) { /** * Filters the text prepended to the post title for protected posts. * * The filter is only applied on the front end. * * @since 2.8.0 * * @param string $prepend Text displayed before the post title. * Default 'Protected: %s'. * @param WP_Post $post Current post object. */ $protected_title_format = apply_filters( 'protected_title_format', __( 'Protected: %s' ), $post ); $title = sprintf( $protected_title_format, $title ); } elseif ( isset( $post->post_status ) && 'private' == $post->post_status ) { /** * Filters the text prepended to the post title of private posts. * * The filter is only applied on the front end. * * @since 2.8.0 * * @param string $prepend Text displayed before the post title. * Default 'Private: %s'. * @param WP_Post $post Current post object. */ $private_title_format = apply_filters( 'private_title_format', __( 'Private: %s' ), $post ); $title = sprintf( $private_title_format, $title ); } } /** * Filters the post title. * * @since 0.71 * * @param string $title The post title. * @param int $id The post ID. */ return apply_filters( 'the_title', $title, $id ); } /** * Display the Post Global Unique Identifier (guid). * * The guid will appear to be a link, but should not be used as a link to the * post. The reason you should not use it as a link, is because of moving the * blog across domains. * * URL is escaped to make it XML-safe. * * @since 1.5.0 * * @param int|WP_Post $post Optional. Post ID or post object. Default is global $post. */ function the_guid( $post = 0 ) { $post = get_post( $post ); $guid = isset( $post->guid ) ? get_the_guid( $post ) : ''; $id = isset( $post->ID ) ? $post->ID : 0; /** * Filters the escaped Global Unique Identifier (guid) of the post. * * @since 4.2.0 * * @see get_the_guid() * * @param string $guid Escaped Global Unique Identifier (guid) of the post. * @param int $id The post ID. */ echo apply_filters( 'the_guid', $guid, $id ); } /** * Retrieve the Post Global Unique Identifier (guid). * * The guid will appear to be a link, but should not be used as an link to the * post. The reason you should not use it as a link, is because of moving the * blog across domains. * * @since 1.5.0 * * @param int|WP_Post $post Optional. Post ID or post object. Default is global $post. * @return string */ function get_the_guid( $post = 0 ) { $post = get_post( $post ); $guid = isset( $post->guid ) ? $post->guid : ''; $id = isset( $post->ID ) ? $post->ID : 0; /** * Filters the Global Unique Identifier (guid) of the post. * * @since 1.5.0 * * @param string $guid Global Unique Identifier (guid) of the post. * @param int $id The post ID. */ return apply_filters( 'get_the_guid', $guid, $id ); } /** * Display the post content. * * @since 0.71 * * @param string $more_link_text Optional. Content for when there is more text. * @param bool $strip_teaser Optional. Strip teaser content before the more text. Default is false. */ function the_content( $more_link_text = null, $strip_teaser = false) { $content = get_the_content( $more_link_text, $strip_teaser ); /** * Filters the post content. * * @since 0.71 * * @param string $content Content of the current post. */ $content = apply_filters( 'the_content', $content ); $content = str_replace( ']]>', ']]>', $content ); echo $content; } /** * Retrieve the post content. * * @since 0.71 * * @global int $page Page number of a single post/page. * @global int $more Boolean indicator for whether single post/page is being viewed. * @global bool $preview Whether post/page is in preview mode. * @global array $pages Array of all pages in post/page. Each array element contains part of the content separated by the tag. * @global int $multipage Boolean indicator for whether multiple pages are in play. * * @param string $more_link_text Optional. Content for when there is more text. * @param bool $strip_teaser Optional. Strip teaser content before the more text. Default is false. * @return string */ function get_the_content( $more_link_text = null, $strip_teaser = false ) { global $page, $more, $preview, $pages, $multipage; $post = get_post(); if ( null === $more_link_text ) { $more_link_text = sprintf( '%2$s', sprintf( /* translators: %s: Name of current post */ __( 'Continue reading %s' ), the_title_attribute( array( 'echo' => false ) ) ), __( '(more…)' ) ); } $output = ''; $has_teaser = false; // If post password required and it doesn't match the cookie. if ( post_password_required( $post ) ) return get_the_password_form( $post ); if ( $page > count( $pages ) ) // if the requested page doesn't exist $page = count( $pages ); // give them the highest numbered page that DOES exist $content = $pages[$page - 1]; if ( preg_match( '//', $content, $matches ) ) { $content = explode( $matches[0], $content, 2 ); if ( ! empty( $matches[1] ) && ! empty( $more_link_text ) ) $more_link_text = strip_tags( wp_kses_no_null( trim( $matches[1] ) ) ); $has_teaser = true; } else { $content = array( $content ); } if ( false !== strpos( $post->post_content, '' ) && ( ! $multipage || $page == 1 ) ) $strip_teaser = true; $teaser = $content[0]; if ( $more && $strip_teaser && $has_teaser ) $teaser = ''; $output .= $teaser; if ( count( $content ) > 1 ) { if ( $more ) { $output .= '' . $content[1]; } else { if ( ! empty( $more_link_text ) ) /** * Filters the Read More link text. * * @since 2.8.0 * * @param string $more_link_element Read More link element. * @param string $more_link_text Read More text. */ $output .= apply_filters( 'the_content_more_link', ' ID}\" class=\"more-link\">$more_link_text", $more_link_text ); $output = force_balance_tags( $output ); } } if ( $preview ) // Preview fix for JavaScript bug with foreign languages. $output = preg_replace_callback( '/\%u([0-9A-F]{4})/', '_convert_urlencoded_to_entities', $output ); return $output; } /** * Preview fix for JavaScript bug with foreign languages. * * @since 3.1.0 * @access private * * @param array $match Match array from preg_replace_callback. * @return string */ function _convert_urlencoded_to_entities( $match ) { return '&#' . base_convert( $match[1], 16, 10 ) . ';'; } /** * Display the post excerpt. * * @since 0.71 */ function the_excerpt() { /** * Filters the displayed post excerpt. * * @since 0.71 * * @see get_the_excerpt() * * @param string $post_excerpt The post excerpt. */ echo apply_filters( 'the_excerpt', get_the_excerpt() ); } /** * Retrieves the post excerpt. * * @since 0.71 * @since 4.5.0 Introduced the `$post` parameter. * * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post. * @return string Post excerpt. */ function get_the_excerpt( $post = null ) { if ( is_bool( $post ) ) { _deprecated_argument( __FUNCTION__, '2.3.0' ); } $post = get_post( $post ); if ( empty( $post ) ) { return ''; } if ( post_password_required( $post ) ) { return __( 'There is no excerpt because this is a protected post.' ); } /** * Filters the retrieved post excerpt. * * @since 1.2.0 * @since 4.5.0 Introduced the `$post` parameter. * * @param string $post_excerpt The post excerpt. * @param WP_Post $post Post object. */ return apply_filters( 'get_the_excerpt', $post->post_excerpt, $post ); } /** * Whether the post has a custom excerpt. * * @since 2.3.0 * * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post. * @return bool True if the post has a custom excerpt, false otherwise. */ function has_excerpt( $post = 0 ) { $post = get_post( $post ); return ( !empty( $post->post_excerpt ) ); } /** * Display the classes for the post div. * * @since 2.7.0 * * @param string|array $class One or more classes to add to the class list. * @param int|WP_Post $post_id Optional. Post ID or post object. Defaults to the global `$post`. */ function post_class( $class = '', $post_id = null ) { // Separates classes with a single space, collates classes for post DIV echo 'class="' . join( ' ', get_post_class( $class, $post_id ) ) . '"'; } /** * Retrieves the classes for the post div as an array. * * The class names are many. If the post is a sticky, then the 'sticky' * class name. The class 'hentry' is always added to each post. If the post has a * post thumbnail, 'has-post-thumbnail' is added as a class. For each taxonomy that * the post belongs to, a class will be added of the format '{$taxonomy}-{$slug}' - * eg 'category-foo' or 'my_custom_taxonomy-bar'. * * The 'post_tag' taxonomy is a special * case; the class has the 'tag-' prefix instead of 'post_tag-'. All classes are * passed through the filter, {@see 'post_class'}, with the list of classes, followed by * $class parameter value, with the post ID as the last parameter. * * @since 2.7.0 * @since 4.2.0 Custom taxonomy classes were added. * * @param string|array $class One or more classes to add to the class list. * @param int|WP_Post $post_id Optional. Post ID or post object. * @return array Array of classes. */ function get_post_class( $class = '', $post_id = null ) { $post = get_post( $post_id ); $classes = array(); if ( $class ) { if ( ! is_array( $class ) ) { $class = preg_split( '#\s+#', $class ); } $classes = array_map( 'esc_attr', $class ); } else { // Ensure that we always coerce class to being an array. $class = array(); } if ( ! $post ) { return $classes; } $classes[] = 'post-' . $post->ID; if ( ! is_admin() ) $classes[] = $post->post_type; $classes[] = 'type-' . $post->post_type; $classes[] = 'status-' . $post->post_status; // Post Format if ( post_type_supports( $post->post_type, 'post-formats' ) ) { $post_format = get_post_format( $post->ID ); if ( $post_format && !is_wp_error($post_format) ) $classes[] = 'format-' . sanitize_html_class( $post_format ); else $classes[] = 'format-standard'; } $post_password_required = post_password_required( $post->ID ); // Post requires password. if ( $post_password_required ) { $classes[] = 'post-password-required'; } elseif ( ! empty( $post->post_password ) ) { $classes[] = 'post-password-protected'; } // Post thumbnails. if ( current_theme_supports( 'post-thumbnails' ) && has_post_thumbnail( $post->ID ) && ! is_attachment( $post ) && ! $post_password_required ) { $classes[] = 'has-post-thumbnail'; } // sticky for Sticky Posts if ( is_sticky( $post->ID ) ) { if ( is_home() && ! is_paged() ) { $classes[] = 'sticky'; } elseif ( is_admin() ) { $classes[] = 'status-sticky'; } } // hentry for hAtom compliance $classes[] = 'hentry'; // All public taxonomies $taxonomies = get_taxonomies( array( 'public' => true ) ); foreach ( (array) $taxonomies as $taxonomy ) { if ( is_object_in_taxonomy( $post->post_type, $taxonomy ) ) { foreach ( (array) get_the_terms( $post->ID, $taxonomy ) as $term ) { if ( empty( $term->slug ) ) { continue; } $term_class = sanitize_html_class( $term->slug, $term->term_id ); if ( is_numeric( $term_class ) || ! trim( $term_class, '-' ) ) { $term_class = $term->term_id; } // 'post_tag' uses the 'tag' prefix for backward compatibility. if ( 'post_tag' == $taxonomy ) { $classes[] = 'tag-' . $term_class; } else { $classes[] = sanitize_html_class( $taxonomy . '-' . $term_class, $taxonomy . '-' . $term->term_id ); } } } } $classes = array_map( 'esc_attr', $classes ); /** * Filters the list of CSS classes for the current post. * * @since 2.7.0 * * @param array $classes An array of post classes. * @param array $class An array of additional classes added to the post. * @param int $post_id The post ID. */ $classes = apply_filters( 'post_class', $classes, $class, $post->ID ); return array_unique( $classes ); } /** * Display the classes for the body element. * * @since 2.8.0 * * @param string|array $class One or more classes to add to the class list. */ function body_class( $class = '' ) { // Separates classes with a single space, collates classes for body element echo 'class="' . join( ' ', get_body_class( $class ) ) . '"'; } /** * Retrieve the classes for the body element as an array. * * @since 2.8.0 * * @global WP_Query $wp_query * * @param string|array $class One or more classes to add to the class list. * @return array Array of classes. */ function get_body_class( $class = '' ) { global $wp_query; $classes = array(); if ( is_rtl() ) $classes[] = 'rtl'; if ( is_front_page() ) $classes[] = 'home'; if ( is_home() ) $classes[] = 'blog'; if ( is_archive() ) $classes[] = 'archive'; if ( is_date() ) $classes[] = 'date'; if ( is_search() ) { $classes[] = 'search'; $classes[] = $wp_query->posts ? 'search-results' : 'search-no-results'; } if ( is_paged() ) $classes[] = 'paged'; if ( is_attachment() ) $classes[] = 'attachment'; if ( is_404() ) $classes[] = 'error404'; if ( is_singular() ) { $post_id = $wp_query->get_queried_object_id(); $post = $wp_query->get_queried_object(); $post_type = $post->post_type; if ( is_page_template() ) { $classes[] = "{$post_type}-template"; $template_slug = get_page_template_slug( $post_id ); $template_parts = explode( '/', $template_slug ); foreach ( $template_parts as $part ) { $classes[] = "{$post_type}-template-" . sanitize_html_class( str_replace( array( '.', '/' ), '-', basename( $part, '.php' ) ) ); } $classes[] = "{$post_type}-template-" . sanitize_html_class( str_replace( '.', '-', $template_slug ) ); } else { $classes[] = "{$post_type}-template-default"; } if ( is_single() ) { $classes[] = 'single'; if ( isset( $post->post_type ) ) { $classes[] = 'single-' . sanitize_html_class( $post->post_type, $post_id ); $classes[] = 'postid-' . $post_id; // Post Format if ( post_type_supports( $post->post_type, 'post-formats' ) ) { $post_format = get_post_format( $post->ID ); if ( $post_format && !is_wp_error($post_format) ) $classes[] = 'single-format-' . sanitize_html_class( $post_format ); else $classes[] = 'single-format-standard'; } } } if ( is_attachment() ) { $mime_type = get_post_mime_type($post_id); $mime_prefix = array( 'application/', 'image/', 'text/', 'audio/', 'video/', 'music/' ); $classes[] = 'attachmentid-' . $post_id; $classes[] = 'attachment-' . str_replace( $mime_prefix, '', $mime_type ); } elseif ( is_page() ) { $classes[] = 'page'; $page_id = $wp_query->get_queried_object_id(); $post = get_post($page_id); $classes[] = 'page-id-' . $page_id; if ( get_pages( array( 'parent' => $page_id, 'number' => 1 ) ) ) { $classes[] = 'page-parent'; } if ( $post->post_parent ) { $classes[] = 'page-child'; $classes[] = 'parent-pageid-' . $post->post_parent; } } } elseif ( is_archive() ) { if ( is_post_type_archive() ) { $classes[] = 'post-type-archive'; $post_type = get_query_var( 'post_type' ); if ( is_array( $post_type ) ) $post_type = reset( $post_type ); $classes[] = 'post-type-archive-' . sanitize_html_class( $post_type ); } elseif ( is_author() ) { $author = $wp_query->get_queried_object(); $classes[] = 'author'; if ( isset( $author->user_nicename ) ) { $classes[] = 'author-' . sanitize_html_class( $author->user_nicename, $author->ID ); $classes[] = 'author-' . $author->ID; } } elseif ( is_category() ) { $cat = $wp_query->get_queried_object(); $classes[] = 'category'; if ( isset( $cat->term_id ) ) { $cat_class = sanitize_html_class( $cat->slug, $cat->term_id ); if ( is_numeric( $cat_class ) || ! trim( $cat_class, '-' ) ) { $cat_class = $cat->term_id; } $classes[] = 'category-' . $cat_class; $classes[] = 'category-' . $cat->term_id; } } elseif ( is_tag() ) { $tag = $wp_query->get_queried_object(); $classes[] = 'tag'; if ( isset( $tag->term_id ) ) { $tag_class = sanitize_html_class( $tag->slug, $tag->term_id ); if ( is_numeric( $tag_class ) || ! trim( $tag_class, '-' ) ) { $tag_class = $tag->term_id; } $classes[] = 'tag-' . $tag_class; $classes[] = 'tag-' . $tag->term_id; } } elseif ( is_tax() ) { $term = $wp_query->get_queried_object(); if ( isset( $term->term_id ) ) { $term_class = sanitize_html_class( $term->slug, $term->term_id ); if ( is_numeric( $term_class ) || ! trim( $term_class, '-' ) ) { $term_class = $term->term_id; } $classes[] = 'tax-' . sanitize_html_class( $term->taxonomy ); $classes[] = 'term-' . $term_class; $classes[] = 'term-' . $term->term_id; } } } if ( is_user_logged_in() ) $classes[] = 'logged-in'; if ( is_admin_bar_showing() ) { $classes[] = 'admin-bar'; $classes[] = 'no-customize-support'; } if ( get_background_color() !== get_theme_support( 'custom-background', 'default-color' ) || get_background_image() ) $classes[] = 'custom-background'; if ( has_custom_logo() ) { $classes[] = 'wp-custom-logo'; } $page = $wp_query->get( 'page' ); if ( ! $page || $page < 2 ) $page = $wp_query->get( 'paged' ); if ( $page && $page > 1 && ! is_404() ) { $classes[] = 'paged-' . $page; if ( is_single() ) $classes[] = 'single-paged-' . $page; elseif ( is_page() ) $classes[] = 'page-paged-' . $page; elseif ( is_category() ) $classes[] = 'category-paged-' . $page; elseif ( is_tag() ) $classes[] = 'tag-paged-' . $page; elseif ( is_date() ) $classes[] = 'date-paged-' . $page; elseif ( is_author() ) $classes[] = 'author-paged-' . $page; elseif ( is_search() ) $classes[] = 'search-paged-' . $page; elseif ( is_post_type_archive() ) $classes[] = 'post-type-paged-' . $page; } if ( ! empty( $class ) ) { if ( !is_array( $class ) ) $class = preg_split( '#\s+#', $class ); $classes = array_merge( $classes, $class ); } else { // Ensure that we always coerce class to being an array. $class = array(); } $classes = array_map( 'esc_attr', $classes ); /** * Filters the list of CSS body classes for the current post or page. * * @since 2.8.0 * * @param array $classes An array of body classes. * @param array $class An array of additional classes added to the body. */ $classes = apply_filters( 'body_class', $classes, $class ); return array_unique( $classes ); } /** * Whether post requires password and correct password has been provided. * * @since 2.7.0 * * @param int|WP_Post|null $post An optional post. Global $post used if not provided. * @return bool false if a password is not required or the correct password cookie is present, true otherwise. */ function post_password_required( $post = null ) { $post = get_post($post); if ( empty( $post->post_password ) ) { /** This filter is documented in wp-includes/post.php */ return apply_filters( 'post_password_required', false, $post ); } if ( ! isset( $_COOKIE[ 'wp-postpass_' . COOKIEHASH ] ) ) { /** This filter is documented in wp-includes/post.php */ return apply_filters( 'post_password_required', true, $post ); } require_once ABSPATH . WPINC . '/class-phpass.php'; $hasher = new PasswordHash( 8, true ); $hash = wp_unslash( $_COOKIE[ 'wp-postpass_' . COOKIEHASH ] ); if ( 0 !== strpos( $hash, '$P$B' ) ) { $required = true; } else { $required = ! $hasher->CheckPassword( $post->post_password, $hash ); } /** * Filters whether a post requires the user to supply a password. * * @since 4.7.0 * * @param bool $required Whether the user needs to supply a password. True if password has not been * provided or is incorrect, false if password has been supplied or is not required. * @param WP_Post $post Post data. */ return apply_filters( 'post_password_required', $required, $post ); } // // Page Template Functions for usage in Themes // /** * The formatted output of a list of pages. * * Displays page links for paginated posts (i.e. includes the . * Quicktag one or more times). This tag must be within The Loop. * * @since 1.2.0 * * @global int $page * @global int $numpages * @global int $multipage * @global int $more * * @param string|array $args { * Optional. Array or string of default arguments. * * @type string $before HTML or text to prepend to each link. Default is `

Pages:`. * @type string $after HTML or text to append to each link. Default is `

`. * @type string $link_before HTML or text to prepend to each link, inside the `` tag. * Also prepended to the current item, which is not linked. Default empty. * @type string $link_after HTML or text to append to each Pages link inside the `` tag. * Also appended to the current item, which is not linked. Default empty. * @type string $next_or_number Indicates whether page numbers should be used. Valid values are number * and next. Default is 'number'. * @type string $separator Text between pagination links. Default is ' '. * @type string $nextpagelink Link text for the next page link, if available. Default is 'Next Page'. * @type string $previouspagelink Link text for the previous page link, if available. Default is 'Previous Page'. * @type string $pagelink Format string for page numbers. The % in the parameter string will be * replaced with the page number, so 'Page %' generates "Page 1", "Page 2", etc. * Defaults to '%', just the page number. * @type int|bool $echo Whether to echo or not. Accepts 1|true or 0|false. Default 1|true. * } * @return string Formatted output in HTML. */ function wp_link_pages( $args = '' ) { global $page, $numpages, $multipage, $more; $defaults = array( 'before' => '

' . __( 'Pages:' ), 'after' => '

', 'link_before' => '', 'link_after' => '', 'next_or_number' => 'number', 'separator' => ' ', 'nextpagelink' => __( 'Next page' ), 'previouspagelink' => __( 'Previous page' ), 'pagelink' => '%', 'echo' => 1 ); $params = wp_parse_args( $args, $defaults ); /** * Filters the arguments used in retrieving page links for paginated posts. * * @since 3.0.0 * * @param array $params An array of arguments for page links for paginated posts. */ $r = apply_filters( 'wp_link_pages_args', $params ); $output = ''; if ( $multipage ) { if ( 'number' == $r['next_or_number'] ) { $output .= $r['before']; for ( $i = 1; $i <= $numpages; $i++ ) { $link = $r['link_before'] . str_replace( '%', $i, $r['pagelink'] ) . $r['link_after']; if ( $i != $page || ! $more && 1 == $page ) { $link = _wp_link_page( $i ) . $link . '
'; } /** * Filters the HTML output of individual page number links. * * @since 3.6.0 * * @param string $link The page number HTML output. * @param int $i Page number for paginated posts' page links. */ $link = apply_filters( 'wp_link_pages_link', $link, $i ); // Use the custom links separator beginning with the second link. $output .= ( 1 === $i ) ? ' ' : $r['separator']; $output .= $link; } $output .= $r['after']; } elseif ( $more ) { $output .= $r['before']; $prev = $page - 1; if ( $prev > 0 ) { $link = _wp_link_page( $prev ) . $r['link_before'] . $r['previouspagelink'] . $r['link_after'] . ''; /** This filter is documented in wp-includes/post-template.php */ $output .= apply_filters( 'wp_link_pages_link', $link, $prev ); } $next = $page + 1; if ( $next <= $numpages ) { if ( $prev ) { $output .= $r['separator']; } $link = _wp_link_page( $next ) . $r['link_before'] . $r['nextpagelink'] . $r['link_after'] . ''; /** This filter is documented in wp-includes/post-template.php */ $output .= apply_filters( 'wp_link_pages_link', $link, $next ); } $output .= $r['after']; } } /** * Filters the HTML output of page links for paginated posts. * * @since 3.6.0 * * @param string $output HTML output of paginated posts' page links. * @param array $args An array of arguments. */ $html = apply_filters( 'wp_link_pages', $output, $args ); if ( $r['echo'] ) { echo $html; } return $html; } /** * Helper function for wp_link_pages(). * * @since 3.1.0 * @access private * * @global WP_Rewrite $wp_rewrite * * @param int $i Page number. * @return string Link. */ function _wp_link_page( $i ) { global $wp_rewrite; $post = get_post(); $query_args = array(); if ( 1 == $i ) { $url = get_permalink(); } else { if ( '' == get_option('permalink_structure') || in_array($post->post_status, array('draft', 'pending')) ) $url = add_query_arg( 'page', $i, get_permalink() ); elseif ( 'page' == get_option('show_on_front') && get_option('page_on_front') == $post->ID ) $url = trailingslashit(get_permalink()) . user_trailingslashit("$wp_rewrite->pagination_base/" . $i, 'single_paged'); else $url = trailingslashit(get_permalink()) . user_trailingslashit($i, 'single_paged'); } if ( is_preview() ) { if ( ( 'draft' !== $post->post_status ) && isset( $_GET['preview_id'], $_GET['preview_nonce'] ) ) { $query_args['preview_id'] = wp_unslash( $_GET['preview_id'] ); $query_args['preview_nonce'] = wp_unslash( $_GET['preview_nonce'] ); } $url = get_preview_post_link( $post, $query_args, $url ); } return ''; } // // Post-meta: Custom per-post fields. // /** * Retrieve post custom meta data field. * * @since 1.5.0 * * @param string $key Meta data key name. * @return false|string|array Array of values or single value, if only one element exists. False will be returned if key does not exist. */ function post_custom( $key = '' ) { $custom = get_post_custom(); if ( !isset( $custom[$key] ) ) return false; elseif ( 1 == count($custom[$key]) ) return $custom[$key][0]; else return $custom[$key]; } /** * Display list of post custom fields. * * @since 1.2.0 * * @internal This will probably change at some point... * */ function the_meta() { if ( $keys = get_post_custom_keys() ) { echo "\n"; } } // // Pages // /** * Retrieve or display list of pages as a dropdown (select list). * * @since 2.1.0 * @since 4.2.0 The `$value_field` argument was added. * @since 4.3.0 The `$class` argument was added. * * @param array|string $args { * Optional. Array or string of arguments to generate a pages drop-down element. * * @type int $depth Maximum depth. Default 0. * @type int $child_of Page ID to retrieve child pages of. Default 0. * @type int|string $selected Value of the option that should be selected. Default 0. * @type bool|int $echo Whether to echo or return the generated markup. Accepts 0, 1, * or their bool equivalents. Default 1. * @type string $name Value for the 'name' attribute of the select element. * Default 'page_id'. * @type string $id Value for the 'id' attribute of the select element. * @type string $class Value for the 'class' attribute of the select element. Default: none. * Defaults to the value of `$name`. * @type string $show_option_none Text to display for showing no pages. Default empty (does not display). * @type string $show_option_no_change Text to display for "no change" option. Default empty (does not display). * @type string $option_none_value Value to use when no page is selected. Default empty. * @type string $value_field Post field used to populate the 'value' attribute of the option * elements. Accepts any valid post field. Default 'ID'. * } * @return string HTML content, if not displaying. */ function wp_dropdown_pages( $args = '' ) { $defaults = array( 'depth' => 0, 'child_of' => 0, 'selected' => 0, 'echo' => 1, 'name' => 'page_id', 'id' => '', 'class' => '', 'show_option_none' => '', 'show_option_no_change' => '', 'option_none_value' => '', 'value_field' => 'ID', ); $r = wp_parse_args( $args, $defaults ); $pages = get_pages( $r ); $output = ''; // Back-compat with old system where both id and name were based on $name argument if ( empty( $r['id'] ) ) { $r['id'] = $r['name']; } if ( ! empty( $pages ) ) { $class = ''; if ( ! empty( $r['class'] ) ) { $class = " class='" . esc_attr( $r['class'] ) . "'"; } $output = "\n"; } /** * Filters the HTML output of a list of pages as a drop down. * * @since 2.1.0 * @since 4.4.0 `$r` and `$pages` added as arguments. * * @param string $output HTML output for drop down list of pages. * @param array $r The parsed arguments array. * @param array $pages List of WP_Post objects returned by `get_pages()` */ $html = apply_filters( 'wp_dropdown_pages', $output, $r, $pages ); if ( $r['echo'] ) { echo $html; } return $html; } /** * Retrieve or display list of pages (or hierarchical post type items) in list (li) format. * * @since 1.5.0 * @since 4.7.0 Added the `item_spacing` argument. * * @see get_pages() * * @global WP_Query $wp_query * * @param array|string $args { * Array or string of arguments. Optional. * * @type int $child_of Display only the sub-pages of a single page by ID. Default 0 (all pages). * @type string $authors Comma-separated list of author IDs. Default empty (all authors). * @type string $date_format PHP date format to use for the listed pages. Relies on the 'show_date' parameter. * Default is the value of 'date_format' option. * @type int $depth Number of levels in the hierarchy of pages to include in the generated list. * Accepts -1 (any depth), 0 (all pages), 1 (top-level pages only), and n (pages to * the given n depth). Default 0. * @type bool $echo Whether or not to echo the list of pages. Default true. * @type string $exclude Comma-separated list of page IDs to exclude. Default empty. * @type array $include Comma-separated list of page IDs to include. Default empty. * @type string $link_after Text or HTML to follow the page link label. Default null. * @type string $link_before Text or HTML to precede the page link label. Default null. * @type string $post_type Post type to query for. Default 'page'. * @type string|array $post_status Comma-separated list or array of post statuses to include. Default 'publish'. * @type string $show_date Whether to display the page publish or modified date for each page. Accepts * 'modified' or any other value. An empty value hides the date. Default empty. * @type string $sort_column Comma-separated list of column names to sort the pages by. Accepts 'post_author', * 'post_date', 'post_title', 'post_name', 'post_modified', 'post_modified_gmt', * 'menu_order', 'post_parent', 'ID', 'rand', or 'comment_count'. Default 'post_title'. * @type string $title_li List heading. Passing a null or empty value will result in no heading, and the list * will not be wrapped with unordered list `