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run code in 150+ php & hhvm versions
Bugs & Features
<?php namespace NS { class A { function test() { echo 'test'; } } } namespace NS2 { } namespace NS3 { class MyClass extends \B { function test() { echo 'test under MyClass'; } } } namespace NS4 { class_alias( 'NS\A', 'B' ); function foo (\NS\A $f) { $f->test(); } foo (new \NS3\MyClass); }
based on Aa7P6
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Fatal error: Class 'B' not found in /in/EE95S on line 15
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: unknown class B in /in/EE95S on line 15
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/EE95S on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/EE95S on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/EE95S on line 2
Process exited with code 255.