다차원 배열에 대해서 질문 드립니다... 채택완료

<?php$str = '253020|253020,1.62,3.28,3.44|AAA|1|1.62////253004|253004,1.62,3.28,3.44|AAA|2|3.44////252988|252988,2.00,3.28,3.44|AAA|1|2.00////252972|252972,1.62,3.52,5.02|AAA|2|5.02';$arr = explode('////', str_replace(',', '|', $str));$cnt = count($arr);for ($i = 0; $i < $cnt; $i++) {  $arr2 = explode('|', $arr[$i]);  list($a0[], $a1[], $a2[], $a3[], $a4[], $a5[], $a6[], $a7[], $a8[]) = $arr2;}echo 'a = '.implode(',', $a1);echo '<br>';echo 'b = '.implode(',', $a6);echo '<br>';echo 'c = '.implode(',', $a4);echo '<br>';echo 'd = '.$a5[0];echo '<br>';echo 'e = '.implode(',', $a2);echo '<br>';echo 'f = '.implode(',', $a3);echo '<br>';echo 'g = '.implode(',', $a7);echo '<br>';