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PHP · Module 1 of 10

Introduction to PHP

PHP is a server-side language that powers much of the web.

📖 Key ideas

  1. PHP runs on the server and outputs HTML.
  2. Powers WordPress, Laravel apps and many websites.
  3. Code goes inside <?php ... ?> tags.
  4. Run locally with XAMPP/WAMP or php -S localhost:8000.
  5. Current versions: PHP 8.x with big performance gains.
💡 Real-life example: PHP is a kitchen behind the restaurant: it cooks the page on the server before sending it to your table.
Server-sideRuns on the web server
<?php ?>PHP code tags
XAMPPLocal Apache + MySQL + PHP bundle
echoOutputs text