3v4l.org

run code in 150+ 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 $m\n";} function eq($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 aqjaj
Output for 7.0.0 - 7.1.0
Notice: Undefined variable: eq in /in/hv2VQ on line 22 Fatal error: Uncaught Error: Function name must be a string in /in/hv2VQ:10 Stack trace: #0 /in/hv2VQ(22): group(NULL, Array) #1 {main} thrown in /in/hv2VQ on line 10
Process exited with code 255.
Output for 5.4.0 - 5.6.28, hhvm-3.12.0
Notice: Undefined variable: eq in /in/hv2VQ on line 22 Fatal error: Function name must be a string in /in/hv2VQ on line 10
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/hv2VQ 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/hv2VQ on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/hv2VQ on line 5
Process exited with code 255.