PHP Tutorial — Code4U

Introduction

PHP runs on the server and outputs HTML to the client. Start by installing a local server (XAMPP/WAMP) and save files as .php.

<?php
echo "Hello from PHP!";
?>

Working with forms

<form method="POST">
  <input name="name">
  <button>Send</button>
</form>

<?php
if($_SERVER['REQUEST_METHOD']==='POST'){
  echo "Hi " . htmlspecialchars($_POST['name']);
}
?>