How to use array walk in PHP
In this article, I will explain how the array_walk() function can be used in PHP.
array_walk() function in PHP
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The array_walk() function is used to run each array element in a user-define function.
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In array_walk() function, the array's keys and values are parameters in the function.
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In array_walk() function, the array's keys and values is returns True or False.
Syntax
| array_walk(array,function,parameter) |
Parameter
- array array is required parameter. the specified array whose values are to be counted.
- function function is required parameter. the name of the user-define function.
- parameter parameter is optional parameter. determine a parameter define by the user.
Example
The following example show to how the array_walk() function can be used in PHP.
|
<html>
<body>
<h3 style="color: brown;">array_walk() function example in PHP</h3>
<?php
function mydemo($value,$key)
{
echo "C-sharpcorner $key has $value<br />";
}
$a=array("tutorial1"=>"PHP","tutorial2"=>"ASP.NET","tutorial3"=>"JSP");
array_walk($a,"mydemo");
?>
</body>
</html>
|
Output
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