3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class a { private $a = '1a'; } class b { private $b = '2b'; } $r = [ new a, new b, new a, new b, new b, ]; var_dump(array_unique($r));
based on Kl4of
Output for 7.1.0 - 7.2.0
Recoverable fatal error: Object of class a could not be converted to string in /in/WhMcR on line 22
Process exited with code 255.
Output for 5.4.8 - 7.0.20
Catchable fatal error: Object of class a could not be converted to string in /in/WhMcR on line 22
Process exited with code 255.
Output for 5.3.18 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/WhMcR on line 14
Process exited with code 255.