![]() ![]() To validate data on the client-side, you can use either HTML5 form validation or JavaScript validation. This is known as client-side form validation. It has two input elements with type text and email.īefore submitting the form to the server, the web browser checks if all required fields are filled out, in the correct format. The form uses the POST method and submits the data to the subscribe.php page. In the form.php file, you can access the email value as follows: Email: Submit Code language: HTML, XML ( xml )Īnd the following shows the form.php file: PHP Form Demo Name: Email: Subscribe Code language: HTML, XML ( xml ) To check if the form data contains the email, you use the isset() like this: Email: Submit Code language: HTML, XML ( xml ) If the form doesn’t have an email input, the $_POST won’t have any element with the key 'email'. After submitting the form, you can access the form data via the associative array $_POST in PHP.įor example, if a form has an input element with the name email, you can access the email value in PHP via the $_POST. If a form uses the POST method, the web browser will include the form data in the HTTP request’s body. The name attribute will be used for accessing the value in PHP. The input elements are often called form fields.Īn input element has the following important attributes name, type, and value. Typically, a form has one or more input elements including text, password, checkbox, radio button, select, file upload, etc. If you don’t specify the method attribute, the form element will use the get method by default. It means that you can use either post or POST. ![]() In this example, the form method is post. The most commonly used form methods are POST and GET. method: specifies the HTTP method for submitting the form.In this example, the form.php will process the form. action: specifies the URL that processes the form submission.The element has two important attributes: To create a form, you use the element as follows: Code language: HTML, XML ( xml ) Summary: in this tutorial, you will learn how HTML forms work and how to process form data in PHP. ![]()
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