Trying to understand what is happening in this code

Hi - I am new to PHP so this is probably a very rudimentary question. I posed it over at Stack Overflow and got several responses but none of them clarified the issue for me. http://stackoverflow.com/questions/19309369/trying-to-understand-how-these-php-sections-work-together Here's the code I am trying to understand: <body> <h1>The first twenty Fibonacci numbers:</h1> <ul> <?php $first = 0; $second = 1; for ($i = 0; $i < 20; $i++) { ?> <li><?php echo $first + $second ?></li> <?php $temp = $first + $second; $first = $second; $second = $temp; } ?> </ul></body> This code produces an unordered list of the first 20 Fibonacci numbers. I understand that HTML and PHP can be interspersed. I also understand that the PHP processor will look over the code and pick up the code that is between the opening and closing PHP tags. Here's where I am confused: 1. Can the processor really reassemble a for-loop that is broken into segments by opening and closing tags? It seems like the integrity of the loop would be broken. I would expect that the entire loop would have to be contained within a single pair of opening and closing tags for it to work. 2. Even if the processor is able to reassemble the loop seamlessly, how do the <li> tags get included in the loop since they fall outside of the PHP tags? Thanks for your help. Nathan ----------------------------- Nathan Grey