3v4l.org

run code in 300+ PHP versions simultaneously
<?php /* $belongGroup = [ 2, 1 ]; $groups = [ 1 => ['parent_group_id' => 0, 'group_id' => 1], 2 => ['parent_group_id' => 1, 'group_id' => 2], 3 => ['parent_group_id' => 0, 'group_id' => 3], 4 => ['parent_group_id' => 0, 'group_id' => 4], ]; $result = []; foreach($belongGroup as $g) { $l = $groups[$g]; while(true) { if ($l['parent_group_id'] == 0) { break; } $parentId = $l['parent_group_id']; $l = $groups[$parentId]; unset($groups[$parentId]); } $result[] = intval($l['group_id']); } echo implode(", ", $result);*/ $g = []; $l = $g[5]; echo $l['yolo'] == 0;
Output for 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined array key 5 in /in/upegc on line 31 Warning: Trying to access array offset on null in /in/upegc on line 32 1
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined array key 5 in /in/upegc on line 31 Warning: Trying to access array offset on null in /in/upegc on line 32 1
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Warning: Undefined array key 5 in /in/upegc on line 31 Warning: Trying to access array offset on value of type null in /in/upegc on line 32 1
Output for 7.4.0 - 7.4.33
Notice: Undefined offset: 5 in /in/upegc on line 31 Notice: Trying to access array offset on value of type null in /in/upegc on line 32 1
Output for 7.3.32 - 7.3.33
1
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Notice: Undefined offset: 5 in /in/upegc on line 31 1

preferences:
276.19 ms | 403 KiB | 330 Q