Why can't I fill this php array in while loop? -

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i'm trying add values array in while loop in php, however, can't seem so. values added array if test strings, using variables doesn't work. variables ($array[$j][0]) can echoed not added added array.

while($j>0){     $added=array();     $added[]=$array[$j][0]; } print_r($added);

each time $added array getting reset(empty) in while loop. use below code

    $added=array(); while($j>0){     $added[]=$array[$j][0]; } print_r($added);

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