CRUD Operations in PHP Using MySQL


Crud operations in PHP using MySQL Bootstrap; Through this tutorial, we will learn how to make simple crud applications in PHP using MySQL and bootstrap.

This tutorial shows how we can make simple crud (create, read, update, delete) in PHP using MySQL and bootstrap.

This is a very simple and easy example for creating crud(create, read, update, delete) application in PHP with MySQL and bootstrap.

In this PHP MySQL crud tutorial, we will also provide a running demo for our testing. And also we can download free source code from github of the crud operation application using PHP MySQL and bootstrap.

CRUD Operations using PHP Bootstrap and MySQL

Just follow the few steps and make simple CRUD(create, read, update, delete) Application in PHP using MySQL and Boostrap.

  • Step 1 – Create Database
  • Step 2 – Create a New Table
  • Step 3 – Database Connection File
  • Step 4 – Create a js and CSS file
  • Step 5 – Insert form data into database
  • Step 6 – Update form data into database
  • Step 7 – Retrieve and Display List
  • Step 8 – Delete data into database

Step 1 – Create Database

First of all, We need to create a database. So go to PHPMyAdmin and create a new database name my_database.

Step 2 – Create a New Table

Now we need to create a table named users. So go to PHPMyAdmin and run the below SQL query for creating a table in database:

CREATE TABLE `users` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY,
  `name` varchar(255) DEFAULT NULL,
  `email` varchar(255) DEFAULT NULL,
  `mobile` varchar(255) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

Step 3 – Database Connection File

Next step, create a new folder name php-crud. Inside this folder create a new file name connection.php and update the below code into file.

The below code is used to create a MySQL database connection in PHP. When we fetch, insert, update or delete data from MySQL database, there we will include this file:

<?php
/* Database credentials. Assuming are running MySQL
server with default setting (user 'root' with no password) */
define('DB_SERVER', 'localhost');
define('DB_USERNAME', 'root');
define('DB_PASSWORD', '');
define('DB_NAME', 'my_database');
 
/* Attempt to connect to MySQL database */
$conn = mysqli_connect(DB_SERVER, DB_USERNAME, DB_PASSWORD, DB_NAME);
 
// Check connection
if($conn === false){
    die("ERROR: Could not connect. " . mysqli_connect_error());
}
?>

Step 4 – Create a js and CSS file

Next, we need to create one file name head.php and put all the CSS and js file path inside this file. Now we can update the below code into head.php file:

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.js"></script>

Step 5 – Insert form data into database

Next step, we need to create a new file name create.php. So we can update the below code into create.php file.

The below code is used to insert data into the MySQL database in PHP with bootstrap form.

We will create three fields the first name is a name, the second is email and the third field name is mobile. In these three fields in the form, we will insert our database table name users.

<?php
require_once "connection.php";
if(isset($_POST['save']))
{    
$name = $_POST['name'];
$mobile = $_POST['mobile'];
$email = $_POST['email'];
$sql = "INSERT INTO users (name,mobile,email)
VALUES ('$name','$mobile','$email')";
if (mysqli_query($conn, $sql)) {
header("location: index.php");
exit();
} else {
echo "Error: " . $sql . "
" . mysqli_error($conn);
}
mysqli_close($conn);
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Create Record</title>
<?php include "head.php"; ?>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="page-header">
<h2>Create Record</h2>
</div>
<p>Please fill this form and submit to add employee record to the database.</p>
<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
<div class="form-group">
<label>Name</label>
<input type="text" name="name" class="form-control" value="" maxlength="50" required="">
</div>
<div class="form-group ">
<label>Email</label>
<input type="email" name="email" class="form-control" value="" maxlength="30" required="">
</div>
<div class="form-group">
<label>Mobile</label>
<input type="mobile" name="mobile" class="form-control" value="" maxlength="12" required="">
</div>
<input type="submit" class="btn btn-primary" name="save" value="submit">
<a href="index.php" class="btn btn-default">Cancel</a>
</form>
</div>
</div> 
</div>
</body>
</html>

Step 6 – Update form data into database

Now we can create a new file name update.php and update the below code into file.

The below code is used to retrieve and update data from the MySQL database in PHP with bootstrap form.

<?php
// Include database connection file
require_once "connection.php";
if(count($_POST)>0) {
mysqli_query($conn,"UPDATE users set  name='" . $_POST['name'] . "', mobile='" . $_POST['mobile'] . "' ,email='" . $_POST['email'] . "' WHERE id='" . $_POST['id'] . "'");
header("location: index.php");
exit();
}
$result = mysqli_query($conn,"SELECT * FROM users WHERE id='" . $_GET['id'] . "'");
$row= mysqli_fetch_array($result);
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Update Record</title>
<?php include "head.php"; ?>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="page-header">
<h2>Update Record</h2>
</div>
<p>Please edit the input values and submit to update the record.</p>
<form action="<?php echo htmlspecialchars(basename($_SERVER['REQUEST_URI'])); ?>" method="post">
<div class="form-group">
<label>Name</label>
<input type="text" name="name" class="form-control" value="<?php echo $row["name"]; ?>" maxlength="50" required="">
</div>
<div class="form-group ">
<label>Email</label>
<input type="email" name="email" class="form-control" value="<?php echo $row["email"]; ?>" maxlength="30" required="">
</div>
<div class="form-group">
<label>Mobile</label>
<input type="mobile" name="mobile" class="form-control" value="<?php echo $row["mobile"]; ?>" maxlength="12"required="">
</div>
<input type="hidden" name="id" value="<?php echo $row["id"]; ?>"/>
<input type="submit" class="btn btn-primary" value="Submit">
<a href="index.php" class="btn btn-default">Cancel</a>
</form>
</div>
</div>  
</div>
</body>
</html>

Step 7 – Retrieve and Display List

Next step, we will create a new file name index.php and update the below code into index.php.

The below code is used to retrieve or get data from the MySQL database in PHP. Additionally, we will display the fetched data in a bootstrap HTML table.

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Retrieve Or Fetch Data From MySQL Database Using PHP With Boostrap</title>
<?php include "head.php"; ?>
<script type="text/javascript">
$(document).ready(function(){
$('[data-toggle="tooltip"]').tooltip();   
});
</script>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-12 mx-auto">
<div class="page-header clearfix">
<h2 class="pull-left">Users List</h2>
<a href="create.php" class="btn btn-success pull-right">Add New User</a>
</div>
<?php
include_once 'connection.php';
$result = mysqli_query($conn,"SELECT * FROM users");
?>
<?php
if (mysqli_num_rows($result) > 0) {
?>
<table class='table table-bordered table-striped'>
<tr>
<td>Name</td>
<td>Email id</td>
<td>Mobile</td>
<td>Action</td>
</tr>
<?php
$i=0;
while($row = mysqli_fetch_array($result)) {
?>
<tr>
<td><?php echo $row["name"]; ?></td>
<td><?php echo $row["email"]; ?></td>
<td><?php echo ($row["mobile"])?($row["mobile"]):('N/A'); ?></td>
<td><a href="update.php?id=<?php echo $row["id"]; ?>" title='Update Record'><span class='glyphicon glyphicon-pencil'></span></a>
<a href="delete.php?id=<?php echo $row["id"]; ?>" title='Delete Record'><i class='material-icons'><span class='glyphicon glyphicon-trash'></span></a>
</td>
</tr>
<?php
$i++;
}
?>
</table>
<?php
}
else{
echo "No result found";
}
?>
</div>
</div>     
</div>
</body>
</html>

Step 8 – Delete data into database

In the last step, we need to create a one file name delete.php and update the below code into delete.php file.

The below code is used to delete data from the MySQL database in PHP.

<?php
include_once 'connection.php';
$sql = "DELETE FROM users WHERE id='" . $_GET["id"] . "'";
if (mysqli_query($conn, $sql)) {
header("location: index.php");
exit();
} else {
echo "Error deleting record: " . mysqli_error($conn);
}
mysqli_close($conn);
?>

Conclusion

PHP MySQL crud application with bootstrap. In this tutorial, we have learned step by step how we can create simple crud application in PHP using MySQL and bootstrap.

This is a very basic and easy example of crud (create, read, update, delete) in PHP with MySQL and bootstrap.

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Jaspreet Singh Ghuman

Jaspreet Singh Ghuman

Jassweb.com/

Passionate Professional Blogger, Freelancer, WordPress Enthusiast, Digital Marketer, Web Developer, Server Operator, Networking Expert. Empowering online presence with diverse skills.

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