PHP从Ajax调用重定向 [英] PHP redirect from Ajax Call

问题描述

我正在使用Ajax(带有本机JavaScript)和php的组合来构建登录.

Im working with a combination of Ajax (with native JavaScript) and php to construct a login from.

发件人位于一个php文件(login.php)中.提交后，它将运行JS onlclick函数，该函数将表单数据发布到另一个验证表单数据的php文件中:

The from sits in a php file (login.php). When it gets submitted, it runs a JS onlclick function which posts the form data to another php file which validates the form data :

<input type="button" name="submit" value="Submit" onclick="JavaScript:xmlhttpPost('validator.php')"/>

validator.php的结果使用JavaScript在div中返回:

The results from validator.php are returned in a div using JavaScript:

function updatepage(str){

document.getElementById("result").innerHTML = str;

}

最后，如果密码和用户名都正确，validator.php将像这样运行重定向:

Finally if the password and username are both correct, validator.php runs a redirect like this:

if ( // form data is valid ) {

    header("Location: welcome.php");

}

但是，由于一切都通过ajax运行，因此导致"welcome.php"页面显示在原始登录页面的结果" div中.

However, because everything's running through ajax, this results in the "welcome.php" page being displayed in the "results" div on the original login page.

是否可以通过JavaScript发送重定向?

Is there a way to send a redirect via JavaScript instead?

推荐答案

我想出了一个可行的解决方案，代替了实际可行的答案.我不确定这是否是正确的方法，但是效果很好.

In lieu of an answer that actually works, I've figured out a workable solution. I'm not sure whether this is the correct way of doing this but it works well.

在我的validator.php中，当表单值正确时，我输入以下内容:

In my validator.php when the form values are correct I put the following:

if ( // form data is valid ) {

    echo 'redirect';

}

然后，在我的登录页面上，当从php页面返回字符串时，我输入了以下内容:

Then, on my login page, when returning the string from the php page I put this:

function updatepage(str){

   if (str.match(/redirect/)) {
      window.location.replace('welcome.php');
   }
   else {
      document.getElementById("result").innerHTML = str;
   }
}

这个想法是，当validator.php确认登录凭据正确时，它将返回一个字符串.

The idea is that when validator.php confirms the login credentials are correct it returns a string.

如果该字符串与"redirect"匹配，则JavaScript将重定向页面.

If that string matches "redirect", JavaScript will redirect the page.

如果有人对此有任何意见，请发表评论.我觉得这是一个很好的解决方案.惊讶的是我没想到.

If anyone has any input on this, please comment. I feel this is a pretty good solution. Surprised I didn't think of it earlier.

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