在WordPress中使用非默认永久链接的PHP会话问题 [英] Problem with PHP sessions in WordPress with non-default permalinks

问题描述

当我在WordPress中更改默认永久链接时，出现了奇怪的问题。

我的主题（甚至在WordPress的根index.php文件）functions.php文件，并浏览和更新几页（例如/关于页面），我的计数器往往运行两次。

这个问题在我尝试过的每个服务器上以及任何主题或WordPress安装中都被重现。另一件让我的大脑更加困惑的事情是，它不会出现在Safari，Internet Explorer（6,7和8）中，而是仅在Firefox中 。我使用的是Firefox 3.6.8，并且已经在Mac OS X和Windows XP中使用了它。

  session_start（）; 
 
 $ counter = $ _SESSION ['wp_action_counter']; 
 
 if（！isset（$ counter））{
 $ counter = 0; 
} 
 
 $ counter ++; 
 
 echo $ counter; 
 
 $ _SESSION ['wp_action_counter'] = $ counter; 
  

我的.htaccess规则看起来像这样

 < IfModule mod_rewrite.c> 
 RewriteEngine On 
 RewriteBase / 
 RewriteRule ^ index\.php $  -  [L] 
 RewriteCond％{REQUEST_FILENAME}！-f 
 RewriteCond％{REQUEST_FILENAME}！ -d 
 RewriteRule。 /index.php [L] 
< / IfModule> 
  

我很好奇为什么会发生这种情况，并且非常感谢能帮助我解决问题的人。

解决方案

我终于找到了问题所在。

当我有<？php wp_head（）;

 < link rel ='next ...>  'title ='About'href ='http：//mysite.dev/about/'/> 
  

这个链接是 prefetched ，这就是计数器运行两次的原因。调整 wp_head（）; 的输出或移除它可以解决问题。

I'm experiencing a weird problem that occurs when I change the default permalinks in WordPress.

When I place this code in my functions.php file in my theme (or even in the root index.php file in WordPress) and navigate between and updating a few pages (for example the /about page), my counter often runs twice.

This problem is reproduced on every server I tried and on any theme or WordPress installation. Another thing that makes my brain even more confused is that it does not occur in Safari, Internet Explorer (6, 7 & 8), but only in Firefox. I'm using Firefox 3.6.8 and has tried it in both Mac OS X and Windows XP.

session_start();

$counter = $_SESSION['wp_action_counter'];

if( !isset($counter) ){
$counter = 0;
}

$counter++;

echo $counter;

$_SESSION['wp_action_counter'] = $counter;

My .htaccess rules looks like this

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

I'm curious why this happens and is ever thankful to the one who can help me solve the problem.

解决方案

I have finally found out what is the problem.

When I have <?php wp_head(); ?> in my header, WordPress adds this line:

<link rel='next' title='About' href='http://mysite.dev/about/' />

This link is prefetched and this is the cause why the counter runs twice. Adjusting the output of wp_head(); or removing it solves the problem.

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