What is HTML and PHP?

These are coding languages in which your website is written. PHP files are just like HTML files, but they can include both HTML and PHP code. The PHP code is parsed (or executed) by the Web server when the page is accessed and the resulting output is written as HTML within the Web page. When a user accesses a PHP page, his Web browser only gets sent the HTML code, since the Web server has processed the PHP code in the background. PHP can process more complicated code and you can do more with it. Linux web servers support these languages.