The PHP superglobals $_GET and $_POST are used to collect form-data.
PHP – A Simple HTML Form
The example below displays a simple HTML form with two input fields and a submit button:
Example
<html>
<body>
<form action="welcome.php" method="POST">
Name: <input type="text" name="name"><br>
E-mail: <input type="text" name="email"><br>
<input type="submit">
</form>
</body>
</html>
When the user fills out the form above and clicks the submit button, the form data is sent for processing to a PHP file named “welcome.php”. The form data is sent with the HTTP POST method. Continue reading PHP Form Handling