3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function permutation(array $arr) { while($ele=array_shift($arr)) { $x=$ele; echo $x."\n"; foreach($arr as $rest) { $x.=" $rest"; echo $x."\n"; } } } permutation(array(array('red', 'blue', 'green'),array('small', 'med', 'large'),array('car', 'truck', 'van')));
Output for 5.4.0 - 7.1.0
Notice: Array to string conversion in /in/R1e9Y on line 7 Array Notice: Array to string conversion in /in/R1e9Y on line 10 Notice: Array to string conversion in /in/R1e9Y on line 10 Array Array Notice: Array to string conversion in /in/R1e9Y on line 10 Array Array Array Notice: Array to string conversion in /in/R1e9Y on line 7 Array Notice: Array to string conversion in /in/R1e9Y on line 10 Notice: Array to string conversion in /in/R1e9Y on line 10 Array Array Notice: Array to string conversion in /in/R1e9Y on line 7 Array
Output for 5.1.0 - 5.3.29
Array Array Array Array Array Array Array Array Array Array
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/R1e9Y on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/R1e9Y on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/R1e9Y on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/R1e9Y on line 2
Process exited with code 255.