Invoke¶

It is possible to invoke an object, that means calling a function built with the object as the function name.

Invocation is based on the __invoke magic method.

Being invokable means that an object may be used as a function name.

<?php

class x {
    function __invoke($a) {
        echo 'I am '.$a;
    }
}

$x = new x;
$x('x'); // I am x

?>