3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // http://php.net/manual/en/language.oop5.typehinting.php says that type-hinted PHP parameter // that has no default value set to null can't be null. But are you sure? // First, some magic! function custom_error_handler($level, $message, $file = '', $line = 0, $context = array()) { if (error_reporting() & $level) { throw new Exception($message, 0, $level, $file, $line); } } set_error_handler('custom_error_handler'); error_reporting(0); // Yeah, not the best solution class SomeClass {} function test(SomeClass $instance) {var_dump($instance);} // NOTE: E_RECOVERABLE_ERROR (4096) occurs here test(null); // But what is this?! We have NULL in output! Are you surprised?
Output for 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 7.0.0 - 7.1.0

Process exited with code 255.
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
NULL
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/mmAk1 on line 27
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_NEW in /in/mmAk1 on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_NEW in /in/mmAk1 on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/mmAk1 on line 10
Process exited with code 255.