3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $f = get_declared_function(); echo implode("\n",preg_fiter('/^(is_)/','\1',$f['internal']));
based on E8f8G
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Call to undefined function get_declared_function() in /in/Cq7dn:2 Stack trace: #0 {main} thrown in /in/Cq7dn on line 2
Process exited with code 255.
Output for 5.3.18 - 5.6.28
Fatal error: Call to undefined function get_declared_function() in /in/Cq7dn on line 2
Process exited with code 255.