php高手帮下忙，explode 多个分割的问题

[jsrcgj]

$items="49|48";//49|48|45|61……
$tmp = explode("|", $items);
$coun = count($tmp);
for( $i=0;$i < $coun; $i++){
$obj_db->simplequery("update member set yz='1' where id=$tmp[$i]");   
}

上面代码执行是正确的，达到了以下效果：
$obj_db->simplequery("update member set yz='1' where id=49");
$obj_db->simplequery("update member set yz='1' where id=48");
……

现在$items数组变成了这样：
$items="49,3|48,2";//49,3|48,2|45,6|61,3……
执行如下：

$items="49,3|48,2";
$tmp = explode("|", $items);
$coun = count($tmp);
for( $i=0;$i < $coun; $i++){
$tmp2 = explode(",", $tmp[$i]);
$obj_db->simplequery("update member set yz='1' where id=$tmp2[0]");   
}

这段代码执行后效果如下：
$obj_db->simplequery("update member set yz='1' where id=48");
只执行了数组$tmp2[0]最后一个=48值，

如何能让它执行所有呢？即：
$obj_db->simplequery("update member set yz='1' where id=49");
$obj_db->simplequery("update member set yz='1' where id=48");
……

谢谢！

[xuzuning]

$items="49,3|48,2";
$tmp = explode("|", $items);
$coun = count($tmp);
for( $i=0;$i < $coun; $i++){
  $tmp2 = explode(",", $tmp[$i]);
  //$obj_db->simplequery("update member set yz='1' where id=$tmp2[0]");
  echo "update member set yz='1' where id=$tmp2[0]", PHP_EOL;
}

update member set yz='1' where id=49
update member set yz='1' where id=48

没有问题

[jsrcgj]

引用 1 楼 xuzuning 的回复:

$items="49,3|48,2";
$tmp = explode("|", $items);
$coun = count($tmp);
for( $i=0;$i < $coun; $i++){
  $tmp2 = explode(",", $tmp[$i]);
  //$obj_db->simplequery("update member set yz='1' where id=$tmp2[0]");
  echo "update member set yz='1' where id=$tmp2[0]", PHP_EOL;
}

update member set yz='1' where id=49
update member set yz='1' where id=48

没有问题

谢谢！表达错了，主要问题如下：

for( $i=0;$i < $coun; $i++){
  $tmp2 = explode(",", $tmp[$i]);
$query="select * from member where id=$tmp2[0]";
$result=$obj_db->simplequery($query);
$num=$obj_db->numrows($result);
}

执行后$num怎么是1啊？明明是2条符合要求的，如何才能等于2 谢谢！

[xuzuning]

除非你的 id 不唯一，否则只能是 1（查到）或 0（未查到） $num += $obj_db->numrows($result);