如何检查访问者是否已登录，如果是，则设置变量以确定进一步的操作

Question

I am using Joomla 2.5 and in the head of my site I have a module with the following code:

        <?php
$user =JFactory::getUser()->guest;
    if ($user->guest) {
      echo 'Please sign up or sign in to view this'
    }
    else {
      echo 'Here is the content';
    }
       ?>

What I tried but didnt work is to add a variable $member in the first if statement. If the person isnt logged in to show him the echo but also set $member to == true.

Why I want to do this? I think it would make the site load faster if I check the status of $member than to go calling the Joomla API to determine if the user is logged in or not.

The calls to determine if a visitor is a member or not in every page are about 5-7. When I use the JFactory::getUser() function (all of the code above) 5-7 times it does slow down a bit the website. Thats why I thought of creating in the first call the $member == true correct me if I am wrong in thinking this would be better in site perfomance/speed wise.

I tried this:

        <?php
$user =JFactory::getUser()->guest;
    if ($user->guest) {
      echo 'Please sign up or sign in to view this'
      $member == true;
    }
    else {
      echo 'Here is the content';
    }
       ?>

I have the above code in the header module. But when I later in other modules in the same page or in the article if I use a php code it doesn't recognize the status of $member and always determines the user as not logged in.

What am I doing wrong? I'm guessing its something with variables scope, I checked my PHP book but couldn't find the error. Any help appreciated.

Answer 1

You are already calling $user->guest, so try changing:

$user = JFactory::getUser()->guest;

to this:

$user = JFactory::getUser();

As an alternative, you could also do use the following:

$user =& JFactory::getUser();
if($user->id=0){
    echo 'Please sign up or sign in to view this'
    $member == true;
}
else {
    echo 'Here is the content';
}