array_walk_recursive()

array_walk_recursive - Apply a user function recursively to every member of an array

Syntax

bool array_walk_recursive (array &$input, callback $funcname, mixed $userdata)

Arguments

• input - The input array.
• funcname - Typically, funcname takes on two parameters. The input parameter\'s value being the first, and the key/index second. Note: If funcname needs to be working with the actual values of the array, specify the first parameter of funcname as a reference. Then, any changes made to those elements will be made in the original array itself.
• userdata - If the optional userdata parameter is supplied, it will be passed as the third parameter to the callback funcname.

Description

Applies the user-defined function funcname to each element of the input array. This function will recur into deeper arrays.

Version

PHP 5

Return value

Returns TRUE on success or FALSE on failure.