请问一个数据格式转换

array(5) {

  [0]=>

  string(3) "0:3"

  [1]=>

  string(3) "1:6"

  [2]=>

  string(3) "2:9"

  [3]=>

  string(3) "3:2"

  [4]=>

  string(3) "4:4"

}

array(5) {

  0=>3,

  1=>6,

  2=>9,

  3=>2,

  4=>4

}

$ar = array('0:3', '1:6', '2:9', '3:2', '4:4');



foreach($ar as $v) {

  $t = explode(':', $v);

  $res[$t[0]] = $t[1];

}



print_r($res);