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<?php $array1 = [ [ 'date' => '12-Jun-18', 'close' => 55.6, ], [ 'date' => '13-Jun-18', 'close' => 58.6, ], ]; $array2 = [ [ 'date' => '12-Jun-18', 'close' => 1.26, ], [ 'date' => '13-Jun-18', 'close' => 2.37, ], ]; $all = array_merge($array1, $array2); foreach ($all as $datapoint) { $result[$datapoint['date']] []= $datapoint['close']; } print_r($result);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [12-Jun-18] => Array ( [0] => 55.6 [1] => 1.26 ) [13-Jun-18] => Array ( [0] => 58.6 [1] => 2.37 ) )

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