3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php declare(strict_types=1); class Foo { function __toString() {} } function myadd(int $a, int $b): Foo { return new Foo; return $a + $b . "hello"; } echo myadd(6, 7);
based on LhoRR
Output for 7.1.0 - 7.2.0
Recoverable fatal error: Method Foo::__toString() must return a string value in /in/sjmQq on line 13
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Catchable fatal error: Method Foo::__toString() must return a string value in /in/sjmQq on line 13
Process exited with code 255.
Output for 5.3.20 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/sjmQq on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/sjmQq on line 8
Process exited with code 255.