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<?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]; var_dump($l); while(true) { echo $l['parent_group_id'] == 0; if ($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);
Output for git.master, git.master_jit
array(2) { ["parent_group_id"]=> int(1) ["group_id"]=> int(2) } 1 Warning: Undefined array key 1 in /in/3nUVo on line 16 NULL Warning: Trying to access array offset on value of type null in /in/3nUVo on line 19 1 Warning: Trying to access array offset on value of type null in /in/3nUVo on line 20 Warning: Trying to access array offset on value of type null in /in/3nUVo on line 27 1, 0
Output for rfc.property-hooks
array(2) { ["parent_group_id"]=> int(1) ["group_id"]=> int(2) } 1 Warning: Undefined array key 1 in /in/3nUVo on line 16 NULL Warning: Trying to access array offset on null in /in/3nUVo on line 19 1 Warning: Trying to access array offset on null in /in/3nUVo on line 20 Warning: Trying to access array offset on null in /in/3nUVo on line 27 1, 0

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