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<?php $array = array ( array ( 'dnu' => 121428, 'd1' => 43, 'd3' => 27, 'd7' => 20, 'd15' => 15, 'd30' => 12 ) ); print_r($array); $result = []; foreach($array[0] as $key=>$value){ $result[] = ['col'=>$key,'value'=>$value]; } echo json_encode($result);
Output for 5.6.38, 7.1.0 - 7.1.22, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [0] => Array ( [dnu] => 121428 [d1] => 43 [d3] => 27 [d7] => 20 [d15] => 15 [d30] => 12 ) ) [{"col":"dnu","value":121428},{"col":"d1","value":43},{"col":"d3","value":27},{"col":"d7","value":20},{"col":"d15","value":15},{"col":"d30","value":12}]

preferences:
106.85 ms | 1513 KiB | 4 Q