如何查看是否使用jquery设置了php session [英] how to see if php session has been set by using jquery

问题描述

我是否必须做类似var session = "<?php = $_SESSION['sessionname'] ?>";
的操作 还是有一个jquery语句?

我希望能够使用jquery检查会话是否存在

我需要这样做，因为当用户输入用户名时，ajax会加载一个php文件来对其进行验证.如果电子邮件不匹配，则此php启动会话.我尝试了JSON，但它似乎对我不起作用.

我也很高兴听到其他解决方法:)

Do i have to do something like var session = "<?php = $_SESSION['sessionname'] ?>";
Or is there a jquery statement for it?

I want to be able to check if the session exists using jquery

I need to do this because, when the user inputs his username, an ajax loads a php file to validate it. This php starts a session if the email does not match. I tried JSON but it did not seem to work for me.

I will be happy to hear any other way to solve this as well :)

推荐答案

data = {
    action: "session"
}

$.ajax({
    type: "POST",
    dataType: "json",
    url: ajaxurl,
    data: data,
    success: function (json) {
        console.log(json.sessionvalue);
        if(json.session == "true"){
           // code here
        }
    }
});

在php端

if(isset($_POST['action']) && $_POST['action'] == 'session'){
  session_start();
  return json_encode(array("sessionvalue" => $_SESSION['mysessionvar']));
}

您还可以分配多维数组

$array = array("sessions"=>array('value1', 'value2', 'value3'), 'numbers'=>array(0,5,6,8));

return json_encode($array);

可以使用json.sessions [0]等来检索值.

Values can be retrieved by using json.sessions[0] etc ..

提交ajax调用时，应始终使用控制台

When you commit ajax calls, you should always work with the console

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