In PHP, form data can be handled using the `$_POST` or `$_GET` superglobal variables. The `$_POST` variable is used to collect values from an HTML form that has the method attribute set to “post”, while the `$_GET` variable is used to collect values from an HTML form that has the method attribute set to “get” or when values are passed through the URL.
To handle form data in PHP, you can follow these steps:
1. Create an HTML form in your PHP file:
“`html
“`
2. Create a PHP file to handle the form data (`handle_form.php`):
“`php
“`
3. In the PHP file, you can access the form data using the `$_POST` or `$_GET` superglobal variables, depending on the form’s method attribute. In the above example, we are using the `$_POST` variable to access the form data.
4. You can use the form data to perform various operations, such as storing it in a database, sending an email, or performing form validations.
Note: It is important to validate and sanitize form data before using it for any operations to prevent security vulnerabilities like SQL injection or cross-site scripting (XSS) attacks.