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PHP array_walk_recursive() Function

PHP Array Reference PHP Array Reference

Example

Run each array element in a user-defined function:

<?php
function myfunction($value,$key)
{
echo "The key $key has the value $value<br>";
}
$a1=array("a"=>"red","b"=>"green");
$a2=array($a1,"1"=>"blue","2"=>"yellow");
array_walk_recursive($a2,"myfunction");
?>

Run example »

Definition and Usage

The array_walk_recursive() function runs each array element in a user-defined function. The array's keys and values are parameters in the function. The difference between this function and the array_walk() function is that with this function you can work with deeper arrays (an array inside an array).


Syntax

array_walk_recursive(array,myfunction,parameter...)

Parameter Description
array Required. Specifying an array
myfunction Required. The name of the user-defined function
parameter,... Optional. Specifies a parameter to the user-defined function. You can assign one parameter to the function, or as many as you like.

Technical Details

Return Value: Returns TRUE on success or FALSE on failure
PHP Version: 5+


PHP Array Reference PHP Array Reference

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