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<?php /** * Implementation for WordPress functions missing in older WordPress versions. * * @package WordPress * @subpackage Importer */ if ( ! function_exists( 'wp_slash_strings_only' ) ) { /** * Adds slashes to only string values in an array of values. * * Compat for WordPress < 5.3.0. * * @since 0.7.0 * * @param mixed $value Scalar or array of scalars. * @return mixed Slashes $value */ function wp_slash_strings_only( $value ) { return map_deep( $value, 'addslashes_strings_only' ); } } if ( ! function_exists( 'addslashes_strings_only' ) ) { /** * Adds slashes only if the provided value is a string. * * Compat for WordPress < 5.3.0. * * @since 0.7.0 * * @param mixed $value * @return mixed */ function addslashes_strings_only( $value ) { return is_string( $value ) ? addslashes( $value ) : $value; } } if ( ! function_exists( 'map_deep' ) ) { /** * Maps a function to all non-iterable elements of an array or an object. * * Compat for WordPress < 4.4.0. * * @since 0.7.0 * * @param mixed $value The array, object, or scalar. * @param callable $callback The function to map onto $value. * @return mixed The value with the callback applied to all non-arrays and non-objects inside it. */ function map_deep( $value, $callback ) { if ( is_array( $value ) ) { foreach ( $value as $index => $item ) { $value[ $index ] = map_deep( $item, $callback ); } } elseif ( is_object( $value ) ) { $object_vars = get_object_vars( $value ); foreach ( $object_vars as $property_name => $property_value ) { $value->$property_name = map_deep( $property_value, $callback ); } } else { $value = call_user_func( $callback, $value ); } return $value; } }