3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = []; $a['a'] = 'a'; vardump(isset($a['a'])); vardump(isset($a['a']['b'])); vardump(isset($a['a']['b']['c']));
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function vardump() in /in/nWbJM:4 Stack trace: #0 {main} thrown in /in/nWbJM on line 4
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Fatal error: Call to undefined function vardump() in /in/nWbJM on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/nWbJM 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 '[' in /in/nWbJM on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/nWbJM on line 2
Process exited with code 255.