3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(isset("")); ?>
Output for 5.4.0 - 5.4.13
Parse error: syntax error, unexpected '""' (T_CONSTANT_ENCAPSED_STRING) in /in/SKVPT on line 2
Process exited with code 255.
Output for 5.3.3 - 5.3.23
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/SKVPT on line 2
Process exited with code 255.
Output for 5.2.14 - 5.2.17
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting T_STRING or T_VARIABLE or '$' in /in/SKVPT on line 2
Process exited with code 255.