3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array ('test' => 1, 'hello' => NULL, 'pie' => array('a' => 'apple'), 'foo' => 'hey'); unset($a['foo']); var_dump(isset($a['test'])); // TRUE var_dump(isset($a['foo'])); // FALSE var_dump(isset($a['hello'])); // FALSE
based on HHJSl
Output for 4.3.0 - 5.0.5, 5.1.1 - 7.1.0
bool(true) bool(false) bool(false)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/9XqhI on line 7
Process exited with code 255.