Online PHP editor | output for vcQ4U

@ 2016-01-05T21:26:35Z

<?php
function struct(string $name, array $class) {
    $class = json_encode($class);
    define($name, $class);
}
function create($class) {
    $object = (array) json_decode($class);
    return $object;
}
function call(array &$class, string $member, ...$args) {
    if(!isset($class[$member])) exit($member.' is not a member of the class.');
    else {
        if(!isset($args[0])) call_user_func([$class, $member], $class);
        else call_user_func([$class, $member], $class, $args);
    }
}

$obj = [
    'foo' => function (&$this) {
        echo('Hello World!');
    }
];
call($obj, 'foo');

Output for 7.0.7 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: Fatal error: Cannot use $this as parameter in /in/vcQ4U on line 19
Process exited with code 255.
Output for 7.0.0 - 7.0.6: Warning: call_user_func() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in /in/vcQ4U on line 13
Output for 5.6.0 - 5.6.38: Catchable fatal error: Argument 2 passed to call() must be an instance of string, string given, called in /in/vcQ4U on line 23 and defined in /in/vcQ4U on line 10
Process exited with code 255.
Output for 5.5.0 - 5.5.38: Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/vcQ4U on line 10
Process exited with code 255.

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