3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); $arrayKey = '[0][1]'; $a[0][1] = "two levels deep"; function get( $string, $vars ) { $keys = explode( '][', substr( $string, 1, -1 ) ); foreach( $keys as $key ) { $vars = $vars[$key]; } return $vars; } echo get($arrayKey, $vars );
based on 3obQh
Output for 5.0.4 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: vars in /in/uQoMp on line 17
Output for hhvm-3.10.0
Notice: Undefined variable: vars in /in/uQoMp on line -1
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: vars in /in/uQoMp on line 17