__invoke() On New¶

<?php

class x {
    function __construct($i = 0) { echo __METHOD__.PHP_EOL;}

    function __invoke()          { echo __METHOD__.PHP_EOL;}
}

$x = new x;

$y = new $x()();
// identical to
//$y = (new $x(0)) ()

var_dump($y);
// NULL

?>

It is possible to create a new object by calling new on a previous object: PHP fetches the name of the class, then its constructor.

With the PHP 8.4 new syntax without parenthesis, it is also possible to chain the instantiation with a direct call. This calls the __invoke method.

This was not possible in previous versions.

See Also¶

PHP __invoke
invoke on new [Try me]

PHP Features¶

__invoke
new

Last updated: 14 July 2026