php how does it work?

[browny87]

is php a scipt that is incorporated into html. or o u jus write php as completely new different script. jus curious..

[onion2k]

Its a bit of both.

The web server software works out if the page is a php script, and sends it to PHP to process if it is. PHP then parses the code, and anything inside <?php ?> tags gets compiled and evaluated. Anything outside those <?php ?> tags is treated as ordinary HTML.

So...

<b>Hello World</b>

<?php

echo "<b>Hello World</b>";

?>

HTML and PHP in one script.