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<?php $myData = array( array(1,2,3,4,5,6), array(5,8,1,3,87,1) ); $d = array(); foreach($myData as $data) { $d[] = "[" . implode(",", $data) . "]"; } echo "[" . implode(",", $d) . "]";
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[[1,2,3,4,5,6],[5,8,1,3,87,1]]