call_user_func

PHP 4, PHP 5, PHP 7, PHP 8
call_user_func - Call the callback given by the first parameter
Manual
Code Examples

Example #1 call_user_func example

Result: You wanted a mushroom haircut, no problem You wanted a shave haircut, no problem
<?php
function barber($type)
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PHP Version:

Example #2 call_user_func using namespace name

Result: Hello world! Hello world!
<?php
namespace Foobar;
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PHP Version:

Example #3 Using a class method with call_user_func

Result: Hello! Hello! Hello!
<?php
class myclass {
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PHP Version:

Example #4 Using lambda function with call_user_func

Result: [test]
<?php
call_user_func(function($arg) { print "[$arg]\n"; }, 'test');
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PHP Version:


Function call_user_func:

Function Handling Functions

Most used PHP functions