3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump((unset) b"1");
Output for 7.2.0
Deprecated: The (unset) cast is deprecated in /in/R68Aj on line 2 NULL
Output for 5.2.1 - 7.1.10
NULL
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.0
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/R68Aj on line 2
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_CONSTANT_ENCAPSED_STRING in /in/R68Aj on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/R68Aj on line 2
Process exited with code 255.