3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php define('CONSTANT',1); define('_CONSTANT',0); define('EMPTY',''); if (!empty('')) { if(!((boolean) _CONSTANT)) { print "One"; } } else if(constant('CONSTANT') == 1){ print "Two"; }
based on 3l6HM
Output for 5.5.24 - 7.2.0
Two
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '''' (T_CONSTANT_ENCAPSED_STRING) in /in/4dETT on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/4dETT on line 8
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting T_STRING or T_VARIABLE or '$' in /in/4dETT on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting T_STRING or T_VARIABLE or '$' in /in/4dETT on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting T_VARIABLE or '$' in /in/4dETT on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting T_VARIABLE or '$' in /in/4dETT on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/4dETT on line 8
Process exited with code 255.