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run code in 300+ PHP versions simultaneously
<?php class Test { public function callback() {} public function set(callable $callback) {} } $callback = ['Test', 'callback']; var_dump(is_callable($callback)); // return FALSE (new Test())->set($callback); // generate error ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
bool(false)
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(true)
preferences:
132.17 ms | 407 KiB | 5 Q