php mysql 实现身份验证代码

$uname=$_POST[“username”];

$pwd=$_POST[“password”];

$link = mysql_connect(localhost, root, 123456)

or die(Could not connect: . mysql_error());

mysql_select_db(ruida) or die(Could not select database);

// 执行 SQL 查询

$query = SELECT * FROM user;

$result = mysql_query($query) or die(Query failed: . mysql_error());

while($row=mysql_fetch_array($result)){

if($uname==$row[username]