Скачать или смотреть PHP Crud Operations - Select, Insert, Update, Delete | PHP Tutorial For Beginners | With MySql

PHP Crud Operations - Select, Insert, Update, Delete | PHP Tutorial For Beginners | With MySql.
A PHP contact form allows users to communicate with website administrators. It allows them to send queries to the site owners about relevant services or features. Using the contact form, web administrators are able to manage their business emails. Once there is an active contact form available, it can generate queries. It easily gets connected with the database, thus providing complete record and details about the users who are willing to contact and send their queries to website administrators.

Create the contact form HTML as shown below with validation and save it with .php extension. Value which will be written between the double quotes in attribute Name like name=”u_name” in input tags work as a variable name. These attributes will contain the data from the form that we will use to save in our database . There are two methods to send your form data to your PHP page: GET and POST. I will be using POST as it hides the user data and there is no limit to send data. If you don’t have the time to dive deep in technicalities, you can use online forms that are pre-designed according to professional form design standards.

The next step is to setup and configure the MySQL database. For this, fire up the Cloudways Database manager and create a table ‘contact_form_info’, with the fields id , name , email , phone,comments.

Next, create config.php that will be used to set up the connection between the PHP app and the database. Once the file has been created, open it and paste the following code in it:

In this PHP code, I have used the POST method for submitting the contact form data to the server. I will use two PHP global methods, $_REQUEST and $_POST to retrieve and save the contact form data in the server local variable.

The difference between these two is that $_REQUEST can retrieve data from both methods i.e. GET and POST. However, $_POST can only receive data from the POST method.

Here is what the PHP contact form script looks in action:

PHP uses a function called PHP rand() to generate a random number. Using md5(), you can encrypt the number and split it into 6-character captcha code. The code is not only added to the PHP session but also added as a source of captcha image using PHP GD function.

In this tutorial, I demonstrated creating a PHP contact form using HTML, AJAX, jQuery and MySQL. Here is a live demo of the PHP contact form code in action. I’ve also given a brief overview about captcha form, and why you must use it in contact form. The article not only demonstrates how to setup captcha in a contact form, but also defines how to setup its validation using the script tag. Furthermore, you can also use Form Handler library to integrate captcha validation within the form.

Still, if you have some more questions regarding captcha integration in the contact form, or want to share some of your tips on the topic, feel free to write down your suggestions in the comments section below.

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