PHP Function array_walk()

Syntax

array_walk ( $array, $funcname [, $parameter] );

Definition and Usage

This function returns an array containing all the values of array1 that are present in all the arguments array2, array3.

Paramters

Parameter	Description
array	Required. Specifies an array.
funcname	Required. The name of the user-made function.
paramter	Optional. Specifies a parameter to the user-made function.

Example

Try out following example:

<?php function call_back_function($value,$key) { echo "The key $key has the value $value<br />"; } $array = array("a"=>"green", "b"=>"brown", "c"=>"blue", "red"); array_walk($array,"call_back_function"); ?>

This will produce following result:

The key a has the value green The key b has the value brown The key c has the value blue The key 0 has the value red