3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo { class Bar {} } namespace Qux { $foo = new \Foo\Bar; use Foo\Bar; $foo = new Bar; $foo = new FBar; use Foo\Bar as FBar; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Class "Qux\FBar" not found in /in/REaCl:11 Stack trace: #0 {main} thrown in /in/REaCl on line 11
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Class 'Qux\FBar' not found in /in/REaCl:11 Stack trace: #0 {main} thrown in /in/REaCl on line 11
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Fatal error: Class 'Qux\FBar' not found in /in/REaCl on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/REaCl 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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/REaCl on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/REaCl on line 2
Process exited with code 255.

preferences:
327.32 ms | 401 KiB | 447 Q