Question

我想通过点击

为会话赋值

我试图这样做，但它不起作用：

<?php session_start(); 
$_SESSION['role']="";?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
   <head>
<title></title>
<link href="auth-buttons.css" rel="stylesheet" />
<link href="StyleSheet.css" rel="stylesheet" />
   </head>
<body>

<div id="wrap">
<div id="wrapHome">
<p><a class="btn-auth btn-facebook large" href="redirect.php" onclick="<?php $_SESSION['role']="facebook" ?>" > Sign in with <b>Facebook</b> </a></p>

<p><a class="btn-auth btn-twitter large" href="redirect.php" onclick="<?php $_SESSION['role']="twitter" ?>" > Sign in with <b>Twitter</b> </a></p>

<p><a class="btn-auth btn-google large" href="redirect.php" onclick="<?php $_SESSION['role']="google" ?>" > Sign in with <b>Google</b> </a></p>
</div>
</div>
</body>
</html>

Answer 1

一种可能的解决方案是在 redirect.php 中添加 GET 参数，并在 redirect.php中更改 SESSION 变量< /强>

更改以下内容：

<a class="btn-auth btn-facebook large" href="redirect.php" onclick="<?php $_SESSION['role']="facebook" ?>" > Sign in with Facebook </a> <a class="btn-auth btn-twitter large" href="redirect.php" onclick="<?php $_SESSION['role']="twitter" ?>" > Sign in with Twitter </a> <a class="btn-auth btn-google large" href="redirect.php" onclick="<?php $_SESSION['role']="google" ?>" > Sign in with Google </a>

到：

<a class="btn-auth btn-facebook large" href="redirect.php?role=facebook"> Sign in with Facebook </a> <a class="btn-auth btn-twitter large" href="redirect.php?role=twitter"> Sign in with Twitter </a> <a class="btn-auth btn-google large" href="redirect.php?role=google"> Sign in with Google </a>

并将其添加到 redirect.php
的顶部
<? session_start(); $_SESSION['role']=$_GET['role']; ?>

Answer 2

'onclick'不会触发php代码。它会触发javascript。您可以使用javascript对一个php页面进行AJAX调用，该页面又可以设置您的会话值（并且ajax可以帮助您在按钮点击时不刷新页面的情况下这样做。

#('.btn-auth btn-facebook large').click(function(){
// fire off the request to /redirect.php
request = $.ajax({
    url: "/redirect.php",
    type: "post",
    data: 'facebook'
});

// callback handler that will be called on success
request.done(function (response, textStatus, jqXHR){
    // log a message to the console
    console.log("Hooray, it worked!");
});

// callback handler that will be called on failure
request.fail(function (jqXHR, textStatus, errorThrown){
    // log the error to the console
    console.error(
        "The following error occured: "+
        textStatus, errorThrown
    );
    });
});

在你的redirect.php

中

<?php

$_SESSION['role'] = $_POST['data'];

?>

Answer 3

您还可以添加另一个php文件来更改会话变量。

赞：

<p><a class="btn-auth btn-facebook large" href="pass.php"> Sign in with <b>Facebook</b> </a></p>

，并且必须在pass.php中添加以下代码：

<?php
    session_start();
    $_SESSION['role']="facebook"; 
    header("Location: your_first_php.php");
?>

通过单击更改php会话值

3 个答案: