Question

我有2个文件。

Home.php
some_func.php

我在home.php中设置了一个会话变量，我在点击按钮时对some_func.php进行了ajax调用。

问题：

当我第一次加载页面时，会话变量在home.php中设置，但是相同的内容没有反映在some_func.php中，如果我重新加载home.php然后会话变量值反映在some_func.php。

我不知道为什么第一次加载home.php时会反映会话变量值。

我发现这只发生在我的实时服务器上而不是我的本地主机上。

请帮忙。

<?php
//home.php file
session_start();
include 'db.inc.php';
$db =  mysql_connect(MYSQL_HOST, MYSQL_USER, MYSQL_PASSWORD) or die('Unable to connect. Check connection parameters');
mysql_select_db(MYSQL_DB, $db) or die(mysql_error($db));

//Checking what is the latest session id available available in my db.
$query = "SELECT max(ses_id) as max_ses_id FROM `dyn_sess` ";
$result = mysql_query($query, $db) or die(mysql_error());
while ($row = mysql_fetch_assoc($result)) 
{
    $_SESSION['curr_sess'] = $row['max_ses_id']+1; 
}

echo '<script> alert("Your Session ID : '.$_SESSION['curr_sess'].'");</script>';
?>

<html lang="en">    
<head>    
</head>

<body>
    <meta charset="utf-8">
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>

    <script type="text/javascript">
            function call_some_func()
            {
                $.post('some_func.php');

            }
    </script>

    <input type="button" value="PREV" onClick=call_some_func()>

    </body>
</html>

<?php
//some_func.php
    session_start();
    require_once('lib/something.php');
    // some php code here.
    // No sessions variable are set. But the session variable curr_sess is used to call an api and that goes as blank for the first time.
    //If I reload home.php it works fine then after from the second time.
?>

<html>
<script> alert(<?php echo $_SESSION['curr_sess'] ?>); </script>
</html>

会话变量未设置第一次但如果重新加载则设置

0 个答案: