3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a=bool(''); var_dump('' == $a and 'a' == $a and '' === (string)$a and 'a' === (string)$a);
based on Ef9Bp
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Call to undefined function bool() in /in/CBki5:2 Stack trace: #0 {main} thrown in /in/CBki5 on line 2
Process exited with code 255.
Output for 5.3.18 - 5.6.21
Fatal error: Call to undefined function bool() in /in/CBki5 on line 2
Process exited with code 255.