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<?php $q_list = array ( 0 => array ( 'id' => '2', 'subject_id' => '1', 'question' => 'Question No One', 'recordstatus' => '1', ), 1 => array ( 'id' => '3', 'subject_id' => '1', 'question' => 'Question No Two', 'recordstatus' => '1', ), 2 => array ( 'id' => '4', 'subject_id' => '1', 'question' => 'Question No Three', 'recordstatus' => '1', ), ); foreach($q_list as $q){ $res[$q['subject_id']][] = $q; } var_dump($res);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [1]=> array(3) { [0]=> array(4) { ["id"]=> string(1) "2" ["subject_id"]=> string(1) "1" ["question"]=> string(15) "Question No One" ["recordstatus"]=> string(1) "1" } [1]=> array(4) { ["id"]=> string(1) "3" ["subject_id"]=> string(1) "1" ["question"]=> string(15) "Question No Two" ["recordstatus"]=> string(1) "1" } [2]=> array(4) { ["id"]=> string(1) "4" ["subject_id"]=> string(1) "1" ["question"]=> string(17) "Question No Three" ["recordstatus"]=> string(1) "1" } } }

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