Notice: Undefined index: username 什么原因？？？？
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$mysqli->set_charset('utf8');$username=$_POST['username'];$username=$mysqli->escape_string($username);//转义字符串，例如特殊字符$password=md5($_POST['password']);$age=$_POST['age'];$act=$_GET['act'];$id=$_GET['id'];什么原因？？？？错误提示：Notice: Undefined index: usernameNotice: Undefined index: passwordNotice: Undefined index: age |
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你先查看一下你的POST是否有数据吧!!var_dump($_POST)..然后你就知道了 |
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