Can I make an array of functions?

Question

Can I make an array of functions and execute the functions with a foreach loop?

Like:

// This is the beginning of the php file
global $actions = array();

// This is the function where functions need to be added.
function HeadFunction(){
 foreach($actions as $action) 
 $action;
}

This is the function to add the action

function add_action($action){
global $actions;
$actions[] = $action;
}

This is a example function:

function check_Url(){
 if(isset($_GET['gettest'])){
    echo '<script>alert(\'This is a test\');</script>';
 }
}

and then add the function with: add_action(check_Url());

It is to create a hook, in for example the header of a webpage. So you can add functions with add_action() to the header. — Neil Yoga Crypto, Mar 09 '14 at 20:56
Does this answer your question? [Can you store a function in a PHP array?](https://stackoverflow.com/questions/1499862/can-you-store-a-function-in-a-php-array) — ggorlen, May 15 '23 at 23:25

score 0 · Answer 1 · answered Mar 09 '14 at 20:57

0

Use call_user_func.

global $actions = array();

function add_action($action){
global $actions;
$actions[] = $action;
}

add_action('check_Url');
add_action('function2');

foreach ($actions AS $action) {
    call_user_func($action);
}

answered Mar 09 '14 at 20:57

David Xu

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Thank you David Xu! Sheikh Heera pointed out that $action should be $action(), and it worked. What do you think is better way? Adding strings to $actions[] to call $action() vs adding functions to $actions[] and call call_user_func($action)? – Neil Yoga Crypto Mar 09 '14 at 21:01

Can I make an array of functions?

1 Answers1