PHP Mysql 数据库验证

// 练习：从客户端传入一个用户名和密码，判断是否相等，相等则向客户端返回json
// 收集从客户端传入的参数
$name = $_POST[“userid”];
$pwd = $_POST[“password”];

// 根据传入的userid和username判断是否正确，打印相应的结果
$sql = “select * from user where userid = ‘$name'”;
$name2 = mysql_query($sql);
$row = mysql_fetch_array($name2);
// echo($row[“password”]);
//
if ($row[“password”] == $pwd){
$string1 = json_encode(array(“code”=>1, “des”=>”success”));
echo($string1);

}