Question

当有人输入错误的用户名或密码时，我希望在页面上显示错误消息。现在它使用一个弹出框来显示消息，但我想在页面本身上显示它。我该怎么做呢？下面是我的php

<?php
    if(!defined("SESSION")){
       session_start();
       define("SESSION", true);
 }
 if(isset($_GET["log_out"])){
    unset($_SESSION["logged_in"]);
    header('refresh: 0; url=login.php'); 
    exit;
 }

 $login = true;
 require "protect.php";

 $logins[0]["user"] = "";
 $logins[0]["pass"] = "";
 $logins[0]["redirect"] = "test.php";

 $logins[1]["user"] = "";
 $logins[1]["pass"] = "";
 $logins[1]["redirect"] = "";

 $logins[2]["user"] = "";
 $logins[2]["pass"] = "";
 $logins[2]["redirect"] = "test.php";

 // No need to edit below, except the errors

 if(isset($_POST['submit'])){ //is the form submitted?
     if(empty($_POST['user']) || empty($_POST['pass'])){
     header("Location: login.php");
     exit;
  } //check for empty user name or password
  $is_logged = false; //this is part of the process to see if they have a correct password or not, set to false right here to say no right pass... (will change later)
  foreach($logins as $login){
  $user = $_POST;
     if(($user["user"] == $login["user"]) && ($user["pass"] == $login["pass"])) {
   $is_logged = true;
   $_SESSION["logged_in"] = array($login["redirect"], true); //now, if they do have a correct password, set the session to true, and the variable.
  header("Location: ".$login["redirect"]);
  exit;
  }
 }
 if(!$is_logged){ echo '<script type="text/javascript">alert("Inncorect username or password");window.history.go(-1);</script>'; } //if none of the $logins arrays matched the input, give an error
 }
 ?>

Answer 1

您需要做的就是使用echo命令echo一些html，而不是使用Javascript。

试试这个

echo '<p>Incorrect username or password</p>'

如何在没有弹出框的情况下在php登录时显示错误消息

1 个答案: