3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array('A', 'B'); $array2 = array('1', '2', '3'); $num = count($array2); //The total number of possible combinations $total = pow(2, $num); $ff = array(); //Loop through each possible combination for ($i = 0; $i < $total; $i++) { //For each combination check if each bit is set for ($j = 0; $j < $num; $j++) { //Is bit $j set in $i? if (pow(2, $j) & $i) $ff[] = $ff.''.$array2[$j]; } } print_r($ff);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Warning: Array to string conversion in /in/Yt7Lc on line 18 Array ( [0] => Array1 [1] => Array2 [2] => Array1 [3] => Array2 [4] => Array3 [5] => Array1 [6] => Array3 [7] => Array2 [8] => Array3 [9] => Array1 [10] => Array2 [11] => Array3 )

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
36.87 ms | 403 KiB | 8 Q