关于sql注入的请教
刚才看了这个帖子
http://topic.csdn.net/u/20121011/08/ed0d9538-0ed1-49c4-95c3-0fc1ef686aa2.html
他的登录代码是这样的:
$username = $_REQUEST['username']; $password = $_REQUEST['password']; $sql="select * from users where username='$username' and password='$password'";
$username = $_REQUEST['username']; $password = md5($_REQUEST['password']);//改了这行 $sql="select * from users where username='$username' and password='$password'";
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