$ar = array();
foreach($_POST as $k=>$v) {
if($k == 'Select') continue; //跳过提交按钮
if(!empty($v))
$ar[] = "$k='$v'";
}
$query = "select * from tb1 where ". join(' or ', $ar);
请问这里的foreach($_POST as $k=>$v) 是什么意思啊，
我echo $query;得到的结果是"select * from tb1 where ".