Combine arrays?

[aQ]

Hi!

 

I am experimenting a little with tags, and in the database, I have a row called "tags", so that I can set the tags I want into the news I want. I use a comma between each tag. I explode the "tags" row, and all the tags from one of my news gets into an array. I want to combine all the arrays into one. Lets say that I have one post with the tags "free, basic, cool", and an other one with "program, free, open source". How can I combine these two arrays into one? If it's possible, I also want to remove double tags.

 

Thank you for these great boards! 

[sasa]

are you try this

<?php
$a = array('free', 'basic', 'cool');
$b = array('program', 'free', 'open source');
$combined = array_unique(array_merge($a, $b));
print_r($combined);
?>