Re: Trying to understand what is happening in this code

Hi, Just imagine that HTML is printed using echo "<html ...", it not matter when or where you open or close php, its transparent to code execution. Saludos, José Nobile On Fri, Oct 11, 2013 at 10:01 AM, Nathan Grey <greynng@gmail.com> wrote: > 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 >