3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $regions = [ 'int' => 1, 'nl' => 2, 'be' => 4, 'us' => 8, 'as' => 16, 'za' => 32, ]; foreach ($regions as $region => $x) for ($i = $x; end($regions) * 2 - $i > 0; ++$i%$x?:$i+=$x) if (isset($list[$region])) $list[$region] .= ",$i"; else $list[$region] = $i; var_dump($list);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(6) { ["int"]=> string(90) "1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63" ["nl"]=> string(91) "2,3,6,7,10,11,14,15,18,19,22,23,26,27,30,31,34,35,38,39,42,43,46,47,50,51,54,55,58,59,62,63" ["be"]=> string(91) "4,5,6,7,12,13,14,15,20,21,22,23,28,29,30,31,36,37,38,39,44,45,46,47,52,53,54,55,60,61,62,63" ["us"]=> string(93) "8,9,10,11,12,13,14,15,24,25,26,27,28,29,30,31,40,41,42,43,44,45,46,47,56,57,58,59,60,61,62,63" ["as"]=> string(95) "16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63" ["za"]=> string(95) "32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63" }
Output for 5.2.3 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/jW32P on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected '[' in <b>/in/jW32P</b> on line <b>3</b><br />
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
<br /> <b>Parse error</b>: parse error, unexpected '[' in <b>/in/jW32P</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/jW32P</b> on line <b>3</b><br />
Process exited with code 255.