Noob Question: When to use "." and ","

[ev5unleash]

Hey guys,

 

I'm new to PHP and I'm currently teaching myself. I'm looking over some code and I'm confused when to use "." inside of code. Can someone please explain to me?

 

Here's some example code I read from a book:

<?php
$counter = 1;
while ($counter <= 12) {
      echo $counter." times 2 is ".($counter * 2). "<br />"
      $counter++;
}
?>

 

Thanks!

[trq]

. is used to join two variables together. I'm not sure it can be explained much simpler.

[ev5unleash]

Alright thanks, I guess that'll help a little. I will probably understand it more when I start coding?