wp-includes/class-wp-date-query.php:819Builds and validates a value string based on the comparison operator.
$comparestring$valuestring|arraystring|false|int 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; } }Introduced in 3.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-date-query.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.