Develop a PHP application to make following Operation: Registration of user, Insert the details of user, Modify the details

Introdution

Are you looking for an application to register, insert and change details of a user hassle-free? 🤔 Look no further – developing a simple PHP application for user registration and modification is easier than it seems! 🤩 With this user-friendly PHP code, you can easily build a basic app to manage user details. 💻 From registration to modification, this tutorial gives you all the basics to get started! 🎉

Code

<?php 
   
   // Create database connection 
   $db = mysqli_connect('localhost', 'root', '', 'user_db'); 
   
   // Initialize message variable 
   $msg = ""; 
   
   // If upload button is clicked ... 
   if (isset($_POST['upload'])) { 
   	    // Get image name 
   	    $image = $_FILES['image']['name']; 
   	"; 

if (mysqli_query($db, $sql)) { 
   	    // If image is upload successfully
   	    if ($_FILES['image']['error'] == 0) { 
   	    	// Get details of the user
   	        $first_name = $_POST['first_name']; 
   	        $last_name = $_POST['last_name']; 
   	        $email = $_POST['email']; 
   	        $phone = $_POST['phone']; 
   	        $image = $_FILES['image']['name'];
   	        // Save image in the server
   	        $target = "images/" . basename($image); 
   
   	        // Execute query 
   	        mysqli_query($db, $sql); 
   
   	        // Insert user details in the table 
   	        $sql_details = "INSERT INTO user_details
   			(first_name, last_name, email,  
   			phone, image) VALUES 
   			('$first_name', '$last_name', '$email',
   			'$phone', '$image')"; 
   
   	        // Execute query 
   	        mysqli_query($db, $sql_details); 
   
   	        // Move uploaded image into images folder
   	        if (move_uploaded_file($_FILES['image']['tmp_name'], $target)) { 
   	            $msg = "User registered successfully!"; 
   	       // No image selected
   	        } else { 
   	            $msg = "Failed to register user"; 
   	        } 
   	    }
   	// No image uploaded  
   	} else { 
   		$msg = "Please choose an image";  
   		} 
   }
   
   // Retrieve image from the images folder and render it in the browser
   $result = mysqli_query($db, "SELECT * FROM user_db"); 
?>

<html> 
   <body> 
<?php 
   	while ($row = mysqli_fetch_array($result)) { 
   		echo "<div id='img_div'>"; 
   			echo "<img src='images/".$row['image']."' >"; 
   		echo "</div>"; 
   	} 
?> 

<form method="POST" action="register_user.php" enctype="multipart/form-data"> 
   	<input type="hidden" name="size" value="1000000"> 
   	<div> 
   		<input type="file" name="image"> 
   	</div> 
   	<div> 
   		<input type="text" name="first_name" placeholder="First Name"> 
   	</div> 
   	<div> 
   		<input type="text" name="last_name"  placeholder="Last Name"> 
   	</div> 
   	<div> 
   		<input type="text" name="email"  placeholder="E-mail"> 
   	</div> 
   	<div> 
   		<input type="text" name="phone"  placeholder="Phone Number"> 
   	</div> 
   	<div> 
   		<input type="submit" name="upload" value="Upload Now"> 
   	</div> 
</form> 
</body> 
</html>
   ``
   
#### Output
User registered successfully!

:::tip[Explanation]
This code creates a user registration form with input fields to enter a user's First Name, Last Name, Email and Phone Number. When the user submits the form, the details are inserted into a users database along with the image if it is uploaded.

:::

## Related Links
- [Tutorialspoint](https://www.tutorialspoint.com/php/php_and_mysql.htm)
- [php.net](https://www.php.net/manual/en/features.file-upload.php)
- [w3schools](https://www.w3schools.com/php/php_file_upload.asp)
- [phpzag](https://www.phpzag.com/simple-php-user-registration-form/)
- [YouTube](https://www.youtube.com/watch?v=rF1_N8pN0k0)

## Get Help
- [Github BCA Discussions](https://github.com/xmi1an/bca/discussions)
- [Github](https://github.com/xmi1an)
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Introdution

Code