3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if ( isset( false ) ) { echo "true\n"; }
Output for hhvm-3.10.0 - 3.12.0
true
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/Hu2Rm on line 3
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected ')', expecting T_PAAMAYIM_NEKUDOTAYIM in /in/Hu2Rm on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected ')', expecting T_PAAMAYIM_NEKUDOTAYIM in /in/Hu2Rm on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_VARIABLE or '$' in /in/Hu2Rm on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_VARIABLE or '$' in /in/Hu2Rm on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/Hu2Rm on line 3
Process exited with code 255.