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run code in 300+ PHP versions simultaneously
<?php class foo { public $value; public function __invoke($arg) { $this->value = $arg; } public function test() { return $this->value; } } $arg = uniqid(); $a = new foo; $a->__invoke($arg); var_dump($arg === $a->test());
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
bool(true)

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