3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface Foo { public function thing($foo); } class Bar implements Foo { public function thing(&$foo) { $foo++; } } $bar = new Bar(); $a = 1; $bar->thing($a); var_dump($a);
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of Bar::thing(&$foo) must be compatible with Foo::thing($foo) in /in/tfLPR on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of Bar::thing(&$foo) must be compatible with Foo::thing($foo) in /in/tfLPR on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Declaration of Bar::thing() must be compatible with Foo::thing($foo) in /in/tfLPR on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Declaration of Bar::thing() must be compatible with that of Foo::thing() in /in/tfLPR on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/tfLPR on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/tfLPR on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/tfLPR on line 2
Process exited with code 255.
preferences:
249.68 ms | 401 KiB | 356 Q