map_deep( mixed $value, callable $callback )

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


Description Description

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


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Parameters Parameters

$value

(mixed) (Required) The array, object, or scalar.

$callback

(callable) (Required) The function to map onto $value.


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Return Return

(mixed) The value with the callback applied to all non-arrays and non-objects inside it.


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Source Source

File: wp-includes/formatting.php

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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Changelog Changelog

Changelog
Version Description
4.4.0 Introduced.

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