PHP array_walk_recursive() Function
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");
?>
Try it Yourself »
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 Values
| 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
