3v4l.org

run code in 300+ PHP versions simultaneously
<?php $root = array( 1=>'cat1', 2=>'cat2', 3=>'cat3' ); $child_1 = array( 1=>'sub_cat1', 2=>'sub_cat2', 3=>'sub_cat3' ); $child_2 = array( 1=>'sub_sub_cat1', 2=>'sub_sub_cat2', 3=>'sub_sub_cat3' ); function getAllCombinationsArray($source_arrays = array(), $key = '', $value = ''){ $return = array(); $current = array_shift($source_arrays); foreach($current as $ck => $cv) { $ckey = $key.$ck; $cvalue = $value.$cv; if(!empty($source_arrays)) { $return += getAllCombinationsArray($source_arrays, $ckey.'_', $cvalue.' -> '); } else { $return[$ckey] = $cvalue; } } return $return; } print_r(getAllCombinationsArray(array($root, $child_1, $child_2)));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [1_1_1] => cat1 -> sub_cat1 -> sub_sub_cat1 [1_1_2] => cat1 -> sub_cat1 -> sub_sub_cat2 [1_1_3] => cat1 -> sub_cat1 -> sub_sub_cat3 [1_2_1] => cat1 -> sub_cat2 -> sub_sub_cat1 [1_2_2] => cat1 -> sub_cat2 -> sub_sub_cat2 [1_2_3] => cat1 -> sub_cat2 -> sub_sub_cat3 [1_3_1] => cat1 -> sub_cat3 -> sub_sub_cat1 [1_3_2] => cat1 -> sub_cat3 -> sub_sub_cat2 [1_3_3] => cat1 -> sub_cat3 -> sub_sub_cat3 [2_1_1] => cat2 -> sub_cat1 -> sub_sub_cat1 [2_1_2] => cat2 -> sub_cat1 -> sub_sub_cat2 [2_1_3] => cat2 -> sub_cat1 -> sub_sub_cat3 [2_2_1] => cat2 -> sub_cat2 -> sub_sub_cat1 [2_2_2] => cat2 -> sub_cat2 -> sub_sub_cat2 [2_2_3] => cat2 -> sub_cat2 -> sub_sub_cat3 [2_3_1] => cat2 -> sub_cat3 -> sub_sub_cat1 [2_3_2] => cat2 -> sub_cat3 -> sub_sub_cat2 [2_3_3] => cat2 -> sub_cat3 -> sub_sub_cat3 [3_1_1] => cat3 -> sub_cat1 -> sub_sub_cat1 [3_1_2] => cat3 -> sub_cat1 -> sub_sub_cat2 [3_1_3] => cat3 -> sub_cat1 -> sub_sub_cat3 [3_2_1] => cat3 -> sub_cat2 -> sub_sub_cat1 [3_2_2] => cat3 -> sub_cat2 -> sub_sub_cat2 [3_2_3] => cat3 -> sub_cat2 -> sub_sub_cat3 [3_3_1] => cat3 -> sub_cat3 -> sub_sub_cat1 [3_3_2] => cat3 -> sub_cat3 -> sub_sub_cat2 [3_3_3] => cat3 -> sub_cat3 -> sub_sub_cat3 )

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:
41.4 ms | 404 KiB | 8 Q