3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $projectsIds = [1,2]; $userIds = [1,2,3]; $sync_array = []; foreach($projectsIds as $projecID){ foreach($userIds as $userID){ $sync_array[$projecID][] = array('user_id' => $userID); } } var_dump($sync_array);
based on 6RKWp
Output for 5.4.0 - 7.2.0
array(2) { [1]=> array(3) { [0]=> array(1) { ["user_id"]=> int(1) } [1]=> array(1) { ["user_id"]=> int(2) } [2]=> array(1) { ["user_id"]=> int(3) } } [2]=> array(3) { [0]=> array(1) { ["user_id"]=> int(1) } [1]=> array(1) { ["user_id"]=> int(2) } [2]=> array(1) { ["user_id"]=> int(3) } } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/VRCqL on line 3
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/VRCqL on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/VRCqL on line 3
Process exited with code 255.