Call function from an object?

Question

<?php
$ar = (object) array('a'=>function(){
   echo 'TEST';
});
$ar->a();
?>

I get this error Call to undefined method

Answer 1

Update:

If you are using PHP 5.3 or greater, take a look at other answers please :)

---

I don't think that's correct syntax, it would give you:

Parse error: syntax error, unexpected T_FUNCTION in....

You need to create a class, add method to it, use new keyword to instantiate it and then you will be able to do:

$ar->a();

---

class myclass
{
    public function a()
    {
        echo 'TEST';
    }
}

$ar = new myclass;
$ar->a(); // TEST

---

See Classes and Objects for more information.

Answer 2

Anonymous or not, you have a callback function, thus you need to handle it as such. E.g.:

<?php

$ar = (object) array(
    'a' => function(){
        echo 'TEST';
    }
);

call_user_func($ar->a);

?>

Answer 3

For some reason it doesn't seem possibly to run the closure the way you do. If you modify your code and set another variable to the function, it can be called:

$ar = (object) array('a'=>function(){
   echo 'TEST';
});
$a = $ar->a;
$a();

This is no solution. But from what I can see, this seems like a bug or limitation in PHP 5.3.

I am using 5.3.5 when trying this.