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<?php $arr = [ 0 => "Column 1, Column 2 ,Column 3,Column 4,Column 5,Column 6", 1 => "19506,7254,321878,8,1,60", 2 => "187486,685,377,3,0,0", 3 => "187498,682285,3354,45,1,400", 4 => "18498,681285,38959,2,0,0", ]; $keys = explode(",", str_replace(" ","",$arr[0])); array_shift($arr); $arr = array_map(function($a) use($keys){ return array_combine($keys, explode(",",$a)); }, $arr); print_r($arr);

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