Maps a function to all non-iterable elements of an array or an object.

Description

This is similar to array_walk_recursive() but acts upon objects too.

Parameters

$valuemixedrequired

The array, object, or scalar.

$callbackcallablerequired

The function to map onto $value.

Return

Source

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;
}

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