我是编程新手,正在尝试使用 php/mysql 创建登录表单,但遇到了一些问题。我无法理解为什么我的 sql 代码无法执行,我使用的是本地主机。你们能帮帮我吗? 谢谢 这是我写的代码
<?php
$host = "localhost";
$user = "root";
$pass = "";
$db = "login";
mysql_connect($host, $user, $pass);
mysql_select_db($db);
if (isset($_POST['username'])){
$username = $_POST['username'];
$password = $_POST['password'];
$sql = "SELECT * FROM users WHERE username'".$username."' AND password='".$password."' LIMIT 1";
$res = mysql_query($sql);
if (mysql_num_rows($res) == 1){
echo "You have successfully logged in.";
exit();
}else{
echo "Invalid password information.";
exit();
}
}
?>
最佳答案
我想你忘记了 =
$sql = "SELECT * FROM users WHERE username='".$username."' AND password='".$password."' LIMIT 1";
关于php - MySQL无法执行,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33235019/