help with array and loop

[CyberShot]

I am working with wordpress. I am using a plugin that gets options stored in an array in the database. This is how I get the options

 

$options = get_option('option_tree');
echo $options['exc_cat'];

 

the exc_cat is a key that stores a set of values. Right now with the code above, it echoes Array. If I do this

 

echo $options['exc_cat'][0];

 

it returns 5. Which is what I would expect it to do. What I can't figure out is how to get it to store each value which should be a number into 1 variable. What I need to do is loop through each value that is stored in the exc_cat key, return the number seperated by a -1,. So the result should look like this

 

 

-1, -5

 

1 and 5 should be the only two numbers stored in the array at this point. Can you help?

 

Thanks

[AbraCadaver]

foreach($options['exc_cat'] as $cat) {
   echo "-{$cat}";
}

[CyberShot]

Wow!, that was a whole lot easier than I thought it was going to be. Thanks so much

[CyberShot]

okay, one more question. How do I use that out of the foreach loop?

 

I need to put {$cat} into a wordpress query

[CyberShot]

well, I almost have it working. It removes one category but I think it is failing to remove the next one because of a trailing , It is returning

 

-1,-5,

 

instead of -1, -5

 

foreach($options['exc_cat'] as $cat) {
   query_posts($query_string . '&cat=-' . $cat . ',');
}

 

This is the only way I could get it to remove the category. One still stays on the page.