3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array( 'A' => array(1, 2, 3, 4), 'B' => array(5, 6), 'C' => array('a', 'b', 'c')); $values=""; function makeCombinations($array){ if(is_array($array)) { foreach($array as $value) { makeCombinations($value); } } else { $values.=$array; } } makeCombinations($array); echo $values;
Output for 5.0.4 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14
Output for hhvm-3.12.0
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14 Notice: Undefined variable: values in /in/1Jpsk on line 14