3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class S { public function __toString() { return 'S'; } } $s = new S(); $test = array($s => 'asd');
based on YpDej
Output for 5.0.0 - 7.1.0
Warning: Illegal offset type in /in/jpDIj on line 8
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/jpDIj on line 4
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, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/jpDIj on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/jpDIj on line 4
Process exited with code 255.