3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { &function __get($key) {return 'x';} function __isset($key) {return TRUE;} } $c = new C; print_r(empty($c->__get('k')));
Output for 5.4.0 - 5.4.34
Parse error: syntax error, unexpected '&', expecting function (T_FUNCTION) in /in/iRVRd on line 3
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '&', expecting T_FUNCTION in /in/iRVRd on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '&', expecting T_FUNCTION in /in/iRVRd on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/iRVRd on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/iRVRd on line 3
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/iRVRd on line 3
Process exited with code 255.
preferences:
231.04 ms | 1395 KiB | 124 Q