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<?php $preparedstring = "1,2,3;4,5,6;7,8,9"; $outerARR = explode(";", $preparedstring); $arr = array(); foreach ($outerARR as $arrvalue){ $innerarr = explode(",", $arrvalue); $arr[] = $innerarr; } print_r($arr);
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Array ( [0] => Array ( [0] => 1 [1] => 2 [2] => 3 ) [1] => Array ( [0] => 4 [1] => 5 [2] => 6 ) [2] => Array ( [0] => 7 [1] => 8 [2] => 9 ) )