通过javascript发布数据时可以设置会话变量吗? [英] Can i set session variables when posting data via javascript?
问题描述
我创建了一个简单的PHP登录身份验证脚本，现在我想覆盖从表单到auth脚本的数据发布，以便它通过ajax进行操作.
I created a simple PHP login authentication script, now i want to override the posting of data from the form to the auth script so that it does it via ajax.
我这样做是为了使PHP以{"success":[1 OR 0],"error";"ANY ERROR MESSAGE RELATED TO SUCCESS = 0"}格式返回JSON数据，这非常有效，当我尝试使用登录表单时，当我序列化表单并将其发布到auth脚本时，它将返回success:1.正确的用户名+密码，它返回success:0以及登录错误的原因，在原始方法中，表单已发布到auth脚本，然后在成功登录后将auth脚本重定向到受保护的页面，我将其替换为javascript成功接收到登录后更改窗口位置的方法，唯一的问题是似乎没有通过此方法将会话变量设置为从发布到auth脚本.
I made it so that the PHP returns JSON data in the format {"success":[1 OR 0],"error";"ANY ERROR MESSAGE RELATED TO SUCCESS = 0"}, this works perfectly and when i try and use the login form it returns success:1 when i serialize the form and post it to the auth script with a correct username+password and it returns success:0 and the reason why with an incorrect login, on the original method where the form posted to the auth script, then the auth script redirected to a protected page after succesful login i have replaced this with the javascript changing the window location after it recieves a succesful login, only problem being is that is seems the session variables havent been set from posting to the auth script via this method.
有没有一种方法可以使会话变量固定住而无需直接定向到页面?
Is there a way i can make the session variables stick without actually having to direct to the page?
推荐答案
创建&使用JavaScript访问会话变量
使用JavaScript创建会话变量
<?php session_start(); ?>
<html>
<head>
<script type='text/javascript'>
function setSession(variable, value) {
xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET", "setSession.php?variable=" + variable + "&value=" + value, true);
xmlhttp.send();
}
</script>
</head>
<body>
<?php
if(isset($_SESSION['login']) && $_SESSION['login'] == "true")
echo "Session Active. <a href=\"javascript:setSession('login', 'false')\"><input type='submit' value='De-Activate'></a>";
else
echo "Session Inactive. <a href=\"javascript:setSession('login', 'true')\"><input type='submit' value='Activate'></a>";
echo "<a href=\"index.php\"><input type='submit' value='Re-Load Page'></a>";
?>
</body>
</html>
为其分配值
<?php
session_start();
if(isset($_REQUEST['variable']) && isset($_REQUEST['value']))
{
$variable = $_REQUEST['variable'];
$value = $_REQUEST['value'];
$_SESSION[$variable] = $value;
}
?>
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