3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php namespace Foo { class Bar {} } namespace Foo\Legacy { class Bar extends \Foo\Bar {} } namespace { class_alias("\Foo\Bar", "\Foo\Alias\Bar"); $b = new \Foo\Alias\Bar; var_dump(serialize(new \Foo\Alias\Bar)); var_dump(serialize(new \Foo\Legacy\Bar)); }
based on uYbCB
Output for 5.4.20 - 7.2.0
string(18) "O:7:"Foo\Bar":0:{}" string(26) "O:14:"Foo\Legacy\Bar":0:{}"
Output for 5.3.0 - 5.4.19
Fatal error: Class 'Foo\Alias\Bar' not found in /in/B6v57 on line 13
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/B6v57 on line 3
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/B6v57 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/B6v57 on line 3
Process exited with code 255.