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<?php $arr = array( array('date' => '09-04-2018','item' => 'player 1', 'score' => '1'), array('date' => '09-04-2018','item' => 'player 2', 'score' => '2'), array('date' => '10-04-2018','item' => 'player 1', 'score' => '1'), array('date' => '10-04-2018','item' => 'player 2', 'score' => '2'), array('date' => '16-04-2018','item' => 'player 1', 'score' => '3'), array('date' => '16-04-2018','item' => 'player 2', 'score' => '4'), array('date' => '17-04-2018','item' => 'player 1', 'score' => '3'), array('date' => '17-04-2018','item' => 'player 2', 'score' => '4') ); //Week example Foreach($arr as $val){ $res[$val['item']][date("W", strtotime($val['date']))][] = $val['score']; } Var_dump($res);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { ["player 1"]=> array(2) { [15]=> array(2) { [0]=> string(1) "1" [1]=> string(1) "1" } [16]=> array(2) { [0]=> string(1) "3" [1]=> string(1) "3" } } ["player 2"]=> array(2) { [15]=> array(2) { [0]=> string(1) "2" [1]=> string(1) "2" } [16]=> array(2) { [0]=> string(1) "4" [1]=> string(1) "4" } } }

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