class WP_Date_Query {}

Source

class WP_Date_Query {	/** * Array of date queries. * * See WP_Date_Query::__construct() for information on date query arguments. * * @since 3.7.0 * @var array */	public $queries = array();	/** * The default relation between top-level queries. Can be either 'AND' or 'OR'. * * @since 3.7.0 * @var string */	public $relation = 'AND';	/** * The column to query against. Can be changed via the query arguments. * * @since 3.7.0 * @var string */	public $column = 'post_date';	/** * The value comparison operator. Can be changed via the query arguments. * * @since 3.7.0 * @var string */	public $compare = '=';	/** * Supported time-related parameter keys. * * @since 4.1.0 * @var string[] */	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. * * @param array $date_query { * Array of date query clauses. * * @type array ...$0 { * @type string $column Optional. The column to query against. If undefined, inherits the value of * the `$default_column` parameter. See WP_Date_Query::validate_column() and * the 'date_query_valid_columns' filter for the list of accepted values. * 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 ...$0 { * 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. * See WP_Date_Query::validate_column() and * the 'date_query_valid_columns' filter for the list * of accepted values. 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|int[] $year Optional. The four-digit year number. Accepts any four-digit year * or an array of years if `$compare` supports it. Default empty. * @type int|int[] $month Optional. The two-digit month number. Accepts numbers 1-12 or an * array of valid numbers if `$compare` supports it. Default empty. * @type int|int[] $week Optional. The week number of the year. Accepts numbers 0-53 or an * array of valid numbers if `$compare` supports it. Default empty. * @type int|int[] $dayofyear Optional. The day number of the year. Accepts numbers 1-366 or an * array of valid numbers if `$compare` supports it. * @type int|int[] $day Optional. The day of the month. Accepts numbers 1-31 or an array * of valid numbers if `$compare` supports it. Default empty. * @type int|int[] $dayofweek Optional. The day number of the week. Accepts numbers 1-7 (1 is * Sunday) or an array of valid numbers if `$compare` supports it. * Default empty. * @type int|int[] $dayofweek_iso Optional. The day number of the week (ISO). Accepts numbers 1-7 * (1 is Monday) or an array of valid numbers if `$compare` supports it. * Default empty. * @type int|int[] $hour Optional. The hour of the day. Accepts numbers 0-23 or an array * of valid numbers if `$compare` supports it. Default empty. * @type int|int[] $minute Optional. The minute of the hour. Accepts numbers 0-59 or an array * of valid numbers if `$compare` supports it. Default empty. * @type int|int[] $second Optional. The second of the minute. Accepts numbers 0-59 or an * array of valid numbers if `$compare` supports it. Default empty. * } * } * } * @param string $default_column Optional. Default column to query against. See WP_Date_Query::validate_column() * and the 'date_query_valid_columns' filter for the list of accepted values. * Default 'post_date'. */	public function __construct( $date_query, $default_column = 'post_date' ) {	if ( empty( $date_query ) || ! is_array( $date_query ) ) {	return;	}	if ( isset( $date_query['relation'] ) ) {	$this->relation = $this->sanitize_relation( $date_query['relation'] );	} else {	$this->relation = 'AND';	}	// Support for passing time-based keys in the top level of the $date_query array.	if ( ! isset( $date_query[0] ) ) {	$date_query = array( $date_query );	}	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 * * @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 );	}	// Sanitize the relation parameter.	$queries['relation'] = $this->sanitize_relation( $queries['relation'] );	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;	}	/** * Determines 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 * * @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 * * @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' ), true )	) {	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 * * @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 = (int) gmdate( '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 = gmdate( '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.' ),	'<code>' . esc_html( $_value ) . '</code>',	'<code>' . esc_html( $key ) . '</code>',	'<code>' . esc_html( $check['min'] ) . '</code>',	'<code>' . esc_html( $check['max'] ) . '</code>'	);	_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'] ) ) ) {	$day_month_year_error_msg = sprintf(	/* translators: 1: Year, 2: Month, 3: Day of month. */	__( 'The following values do not describe a valid date: year %1$s, month %2$s, day %3$s.' ),	'<code>' . esc_html( $date_query['year'] ) . '</code>',	'<code>' . esc_html( $date_query['month'] ) . '</code>',	'<code>' . esc_html( $date_query['day'] ) . '</code>'	);	$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'] ) ) ) {	$day_month_year_error_msg = sprintf(	/* translators: 1: Month, 2: Day of month. */	__( 'The following values do not describe a valid date: month %1$s, day %2$s.' ),	'<code>' . esc_html( $date_query['month'] ) . '</code>',	'<code>' . esc_html( $date_query['day'] ) . '</code>'	);	$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 list of * allowed and 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 allowed * check, and are only sanitized to remove illegal characters. * * @since 3.7.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @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 ( ! str_contains( $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. * @since 4.6.0 Added 'registered' and 'last_updated' to the default recognized columns. * * @param string[] $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', 'registered', 'last_updated'. */	if ( ! in_array( $column, apply_filters( 'date_query_valid_columns', $valid_columns ), true ) ) {	$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, true ) ) {	$column = $table_name . '.' . $column;	break;	}	}	}	// Remove unsafe characters.	return preg_replace( '/[^a-zA-Z0-9_$\.]/', '', $column );	}	/** * Generates WHERE clause to be appended to a main query. * * @since 3.7.0 * * @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 $query The WP_Date_Query instance. */	return apply_filters( 'get_date_sql', $where, $this );	}	/** * Generates 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 * * @return string[] { * 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;	}	/** * Generates 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 * * @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 * * @param array $query Date query arguments. * @return array { * Array containing JOIN and WHERE SQL clauses to append to the main query. * * @type string[] $join Array of SQL fragments to append to the main JOIN clause. * @type string[] $where Array of SQL fragments 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 * * @global wpdb $wpdb WordPress database abstraction object. * * @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 Array of SQL fragments to append to the main JOIN clause. * @type string[] $where Array of SQL fragments 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.	$date_units = array(	'YEAR' => array( 'year' ),	'MONTH' => array( 'month', 'monthnum' ),	'_wp_mysql_week' => array( 'week', 'w' ),	'DAYOFYEAR' => array( 'dayofyear' ),	'DAYOFMONTH' => array( 'day' ),	'DAYOFWEEK' => array( 'dayofweek' ),	'WEEKDAY' => array( 'dayofweek_iso' ),	);	// Check of the possible date units and add them to the query.	foreach ( $date_units as $sql_part => $query_parts ) {	foreach ( $query_parts as $query_part ) {	if ( isset( $query[ $query_part ] ) ) {	$value = $this->build_value( $compare, $query[ $query_part ] );	if ( $value ) {	switch ( $sql_part ) {	case '_wp_mysql_week':	$where_parts[] = _wp_mysql_week( $column ) . " $compare $value";	break;	case 'WEEKDAY':	$where_parts[] = "$sql_part( $column ) + 1 $compare $value";	break;	default:	$where_parts[] = "$sql_part( $column ) $compare $value";	}	break;	}	}	}	}	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;	}	}	$time_query = $this->build_time_query( $column, $compare, $query['hour'], $query['minute'], $query['second'] );	if ( $time_query ) {	$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 * * @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 passed to date_create(). * * @since 3.7.0 * * @param string|array $datetime An array of parameters or a strtotime() 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 ) {	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' => (int) $matches[1],	);	} elseif ( preg_match( '/^(\d{4})\-(\d{2})$/', $datetime, $matches ) ) {	// Y-m	$datetime = array(	'year' => (int) $matches[1],	'month' => (int) $matches[2],	);	} elseif ( preg_match( '/^(\d{4})\-(\d{2})\-(\d{2})$/', $datetime, $matches ) ) {	// Y-m-d	$datetime = array(	'year' => (int) $matches[1],	'month' => (int) $matches[2],	'day' => (int) $matches[3],	);	} elseif ( preg_match( '/^(\d{4})\-(\d{2})\-(\d{2}) (\d{2}):(\d{2})$/', $datetime, $matches ) ) {	// Y-m-d H:i	$datetime = array(	'year' => (int) $matches[1],	'month' => (int) $matches[2],	'day' => (int) $matches[3],	'hour' => (int) $matches[4],	'minute' => (int) $matches[5],	);	}	// If no match is found, we don't support default_to_max.	if ( ! is_array( $datetime ) ) {	$wp_timezone = wp_timezone();	// Assume local timezone if not provided.	$dt = date_create( $datetime, $wp_timezone );	if ( false === $dt ) {	return gmdate( 'Y-m-d H:i:s', false );	}	return $dt->setTimezone( $wp_timezone )->format( 'Y-m-d H:i:s' );	}	}	$datetime = array_map( 'absint', $datetime );	if ( ! isset( $datetime['year'] ) ) {	$datetime['year'] = current_time( 'Y' );	}	if ( ! isset( $datetime['month'] ) ) {	$datetime['month'] = ( $default_to_max ) ? 12 : 1;	}	if ( ! isset( $datetime['day'] ) ) {	$datetime['day'] = ( $default_to_max ) ? (int) gmdate( '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 * * @global wpdb $wpdb WordPress database abstraction object. * * @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' ), true ) ) {	$return = array();	$value = $this->build_value( $compare, $hour );	if ( false !== $value ) {	$return[] = "HOUR( $column ) $compare $value";	}	$value = $this->build_value( $compare, $minute );	if ( false !== $value ) {	$return[] = "MINUTE( $column ) $compare $value";	}	$value = $this->build_value( $compare, $second );	if ( false !== $value ) {	$return[] = "SECOND( $column ) $compare $value";	}	return implode( ' AND ', $return );	}	// Cases where just one unit is set.	if ( isset( $hour ) && ! isset( $minute ) && ! isset( $second ) ) {	$value = $this->build_value( $compare, $hour );	if ( false !== $value ) {	return "HOUR( $column ) $compare $value";	}	} elseif ( ! isset( $hour ) && isset( $minute ) && ! isset( $second ) ) {	$value = $this->build_value( $compare, $minute );	if ( false !== $value ) {	return "MINUTE( $column ) $compare $value";	}	} elseif ( ! isset( $hour ) && ! isset( $minute ) && isset( $second ) ) {	$value = $this->build_value( $compare, $second );	if ( false !== $value ) {	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 );	}	/** * Sanitizes a 'relation' operator. * * @since 6.0.3 * * @param string $relation Raw relation key from the query argument. * @return string Sanitized relation. Either 'AND' or 'OR'. */	public function sanitize_relation( $relation ) {	if ( 'OR' === strtoupper( $relation ) ) {	return 'OR';	} else {	return 'AND';	}	} } 

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