3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A { } class_alias('B', 'A'); $a = new A(); var_dump($a instanceof B);
Output for 5.3.0 - 7.2.0
Warning: Class 'B' not found in /in/bG14k on line 7 bool(false)
Output for 5.0.0 - 5.2.17
Fatal error: Call to undefined function class_alias() in /in/bG14k on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/bG14k on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/bG14k on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/bG14k on line 11
Process exited with code 255.