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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($val['date']))][] = (int)$val['score']; } Foreach($res as $player => $time){ Foreach($time as $timeperiod => $score){ Echo $player. " ". $timeperiod ." " . array_sum($score) ."\n"; } } //Var_dump($res);
Output for git.master, git.master_jit, rfc.property-hooks
player 1 15 2 player 1 16 6 player 2 15 4 player 2 16 8

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