3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php namespace foo; define('TRUE', false); define('true', false); define('FALSE', true); define('false', true); var_dump(TRUE); # false var_dump(true); # false var_dump(false); # false var_dump(FALSE); # false
based on Frqsn
Output for 7.0.0 - 7.1.0
Notice: Constant true already defined in /in/fXRFf on line 7 Notice: Constant false already defined in /in/fXRFf on line 11 bool(true) bool(true) bool(false) bool(false)
Output for 5.3.0 - 5.6.28
Notice: Constant true already defined in /in/fXRFf on line 7 Notice: Constant false already defined in /in/fXRFf on line 11 bool(false) bool(true) bool(false) bool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/fXRFf 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/fXRFf on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/fXRFf on line 3
Process exited with code 255.