PHP Problem

[Rimmskinator]

Hey everyone,

I've been working on a little project of mine and I've hit a problem (PHP)...
As this project will be released on the forums and on my website, I intend it to be very easy to customize.

So in my config file I have a few classes which are pretty much settings:

$site_name='Name Here';
$site_desc='My Site';

In this instance I will be using these two classes in every html title tag:

<title><?php echo $site_name ; ?> - <?php echo $site_desc ; ?></title>

But if the $site_desc=''; is empty I want it to automatically change to what I manually enter so I tried this:

<title><?php echo $site_name ; ?> - <?php echo $site_desc, ; else echo Index ; ?></title>

Hoping that if the $site_desc was empty it would say 'Index' or if I had it on about.php it would say About if I manually entered it?

Help?

 

[RastaLulz]

You'd do this:

<title><?php echo $site_name; ?> - <?php echo (!empty($site_desc) ? $site_desc : 'Index'); ?></title>

 

[GarettM]

Re-edited:
Incase the variable "$site_desc" does not exist you should check to see if its defined first and if its set, if its not then the answer above/rastas would spring a parse error.
try this:

<title><?php echo $site_name; ?> - <?php echo (array_key_exists('site_desc', get_defined_vars()) && !empty($site_desc)) ? $site_desc : 'Index'; ?></title>

Example

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[Rimmskinator]

You'd do this:

<title><?php echo $site_name; ?> - <?php echo (!empty($site_desc) ? $site_desc : 'Index'); ?></title>

Thanks Josh