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Introduction to PHP Form

Before understanding what is form in PHP, let’s understand what form is?

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The form is a document that contains a couple of blank fields that the user has to fill in the data or the user can select the data. The user’s data is stored in the database with the respective user’s data and can be retrieved anytime and anywhere needed.

PHP Form

Form in PHP is similar to the forms that are built using HTML except the syntax used. In PHP, forms use the GET and POST methods to print or retrieve the data entered by the user.

When the user enters all the details required in the form and submits the form using the submit button the form is then further sent for processing and the action is performed on the basis of whatever is mentioned in the action function. The form is then sent for further processing using GET or POST methods whichever is mentioned while designing the form.

How to Create a Form in PHP and its Syntax?

Forms are used to get the inputs from the user and process the data into the database or submits the data to the corresponding web server for processing purposes. The form contains the HTML tags which will be having the GUI (Graphical User Interface) such as radio buttons, checkboxes, etc.

These components are used in the form so that the user must feel easy to interact with the GUI/webpage or fill the content of the form. Forms are specially prepared for user-friendly purposes where the user who doesn’t have technical knowledge will explore the form in different ways to use it.

Steps to create a form are as follows:

After the form is written it has to be submitted using either GET or POST methods.

If you have to include various attributes like input boxes, checkboxes, radio buttons, etc.

The submission of the form will process the data filled by the user and the necessary actions will be done.


Get and Post Methods Get Method in PHP Post Method in PHP

In PHP, a superglobal array built-in method is used to get the values that are submitted using the HTML page via the POST method. It has a global scope i.e. anyone can see the data or any script can read the data from the program. This method is used when the user doesn’t want to display the content entered by him in the form elements. The best example of using this method is when the user is using login details for a particular website/application.

Examples of Methods in PHP Form

Here are some examples of Get and Post methods which is given below:

Example #1



Example #2

<?php $Name = $Email = $Gender = “”; if ($_SERVER[“REQUEST_METHOD”] == “POST”) { $name = test_input($_POST[“Name”]); $email = test_input($_POST[“Email”]); $gender = test_input($_POST[“Gender”]); } function test_input($data) { $data = trim($data); $data = htmlspecialchars($data); return $data; } Gender:


Example #3


.error {color: #FF0000;} <?php $NameError = $EmailError = $GenderError = “”; $Name = $Email = $Gender = “”; if ($_SERVER[“REQUEST_METHOD”] == “POST”) { if (empty($_POST[“Name”])) { $NameError = “Name is required”; } else { $Name = test_input($_POST[“Name”]); } if (empty($_POST[“Email”])) { $EmailError = “Email is required”; } else { $Email = test_input($_POST[“Email”]); } if (empty($_POST[“Gender”])) { $GenderError = “Gender is required”; } else { $Gender = test_input($_POST[“Gender”]); } } function test_input($data) { $data = trim($data); $data = htmlspecialchars($data); return $data; }



In this article, we have learned different components of form and the methods to submit the form. The developer generally uses the GET method so that the user can see what content has been entered whereas in the POST method the case is different where the user details are not displayed on the screen.

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This is a guide to PHP Form. Here we discuss the basic concept, how to create forms, methods, syntax of PHP form along with examples and code implementation. You may also look at the following articles to learn more-

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