3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function group($cond, $arr) { if (!$arr) return []; $e = array_shift($arr); $g = [$e]; while($cond($e, reset($arr))) { $g[] = array_shift($arr); } return array_merge([$g], group($cond, $arr)); } function it($m,$p){echo ($p?'OK':'NO')." It $m\n";} var $eq = function ($a,$b) {return $a==$b;} echo it ('groups', group($eq, [1,5,5,6,6,6,7,9]) == [[1],[5,5],[6,6,6],[7],[9]]); print_r(group($eq, [1,2,3,3,3,4,6]));
based on hv2VQ
Output for 5.4.0 - 5.4.34
Parse error: syntax error, unexpected 'var' (T_VAR) in /in/RJLjY on line 20
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/RJLjY on line 5
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/RJLjY on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/RJLjY on line 5
Process exited with code 255.