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<?php if($_POST){ $username=$_POST['username']; $password=$_POST['password']; $sql=_query("select * from users where username='$username' and password='$password'"); $res=_num_rows($sql); if($res>0){ $rs_login=_fetch_assoc($sql); $uid=$rs_login['user_id']; $_['sess_uid']=$uid; echo "success"; }else{ echo "invalid username or password"; } }
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