CRUD Operation using PHP/MySQLi with Bootstrap Tutorial

Submitted by nurhodelta_17 on Wednesday, December 16, 2020 - 16:30.

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This tutorial will teach you the basic Create, Read, Update, and Delete Operations using PHP/MySQLi with Boostrap/Modal. Note: Bootstrap and Javascripts used in this tutorial are hosted so you need an internet connection for them to work.

Creating our Database

The first step is to create our database.

Open phpMyAdmin.
Click databases, create a database, and name it as "sample".
After creating a database, click the SQL and paste the below code. See the image below for detailed instructions.

CREATE TABLE `user` (
  `userid` INT(11) NOT NULL AUTO_INCREMENT,
  `firstname` VARCHAR(30) NOT NULL,
  `lastname` VARCHAR(30) NOT NULL,
  `address` VARCHAR(100) NOT NULL,
PRIMARY KEY(`userid`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

Creating our Connection

Next, we create our connection to our database. This will serve as the bridge between our forms and database. We name this as "conn.php".

<?php
 
//MySQLi Procedural
$conn = mysqli_connect("localhost","root","","sample");
if (!$conn) {
	die("Connection failed: " . mysqli_connect_error());
}
 
?>

index.php

The next step is to create our sample table. This will be our Read.

<!DOCTYPE html>
<html>
<head>
	<title>PHP/MySQLi CRUD Operation using Bootstrap/Modal</title>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
	<div style="height:50px;"></div>
	<div class="well" style="margin:auto; padding:auto; width:80%;">
	<span style="font-size:25px; color:blue"><center><strong>PHP/MySQLi CRUD Operation using Bootstrap</strong></center></span>	
		<span class="pull-left"><a href="#addnew" data-toggle="modal" class="btn btn-primary"><span class="glyphicon glyphicon-plus"></span> Add New</a></span>
		<div style="height:50px;"></div>
		<table class="table table-striped table-bordered table-hover">
			<thead>
				<th>Firstname</th>
				<th>Lastname</th>
				<th>Address</th>
				<th>Action</th>
			</thead>
			<tbody>
			<?php
				include('conn.php');
 
				$query=mysqli_query($conn,"select * from `user`");
				while($row=mysqli_fetch_array($query)){
					?>
					<tr>
						<td><?php echo ucwords($row['firstname']); ?></td>
						<td><?php echo ucwords($row['lastname']); ?></td>
						<td><?php echo $row['address']; ?></td>
						<td>
							<a href="#edit<?php echo $row['userid']; ?>" data-toggle="modal" class="btn btn-warning"><span class="glyphicon glyphicon-edit"></span> Edit</a> || 
							<a href="#del<?php echo $row['userid']; ?>" data-toggle="modal" class="btn btn-danger"><span class="glyphicon glyphicon-trash"></span> Delete</a>
							<?php include('button.php'); ?>
						</td>
					</tr>
					<?php
				}
 
			?>
			</tbody>
		</table>
	</div>
	<?php include('add_modal.php'); ?>
</div>
</body>
</html>

add_modal.php

This is our form to add a new row to our database.

<!-- Add New -->
    <div class="modal fade" id="addnew" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                    <center><h4 class="modal-title" id="myModalLabel">Add New</h4></center>
                </div>
                <div class="modal-body">
				<div class="container-fluid">
				<form method="POST" action="addnew.php">
					<div class="row">
						<div class="col-lg-2">
							<label class="control-label" style="position:relative; top:7px;">Firstname:</label>
						</div>
						<div class="col-lg-10">
							<input type="text" class="form-control" name="firstname">
						</div>
					</div>
					<div style="height:10px;"></div>
					<div class="row">
						<div class="col-lg-2">
							<label class="control-label" style="position:relative; top:7px;">Lastname:</label>
						</div>
						<div class="col-lg-10">
							<input type="text" class="form-control" name="lastname">
						</div>
					</div>
					<div style="height:10px;"></div>
					<div class="row">
						<div class="col-lg-2">
							<label class="control-label" style="position:relative; top:7px;">Address:</label>
						</div>
						<div class="col-lg-10">
							<input type="text" class="form-control" name="address">
						</div>
					</div>
                </div> 
				</div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-default" data-dismiss="modal"><span class="glyphicon glyphicon-remove"></span> Cancel</button>
                    <button type="submit" class="btn btn-primary"><span class="glyphicon glyphicon-floppy-disk"></span> Save</a>
				</form>
                </div>
 
            </div>
        </div>
    </div>

addnew.php

This is our code for adding the data in our add form to our database.

<?php
	include('conn.php');
 
	$firstname=$_POST['firstname'];
	$lastname=$_POST['lastname'];
	$address=$_POST['address'];
 
	mysqli_query($conn,"insert into user (firstname, lastname, address) values ('$firstname', '$lastname', '$address')");
	header('location:index.php');
 
?>

button.php

This contains our Edit Modal and Delete Modal.

<!-- Delete -->
    <div class="modal fade" id="del<?php echo $row['userid']; ?>" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                    <center><h4 class="modal-title" id="myModalLabel">Delete</h4></center>
                </div>
                <div class="modal-body">
				<?php
					$del=mysqli_query($conn,"select * from user where userid='".$row['userid']."'");
					$drow=mysqli_fetch_array($del);
				?>
				<div class="container-fluid">
					<h5><center>Are you sure to delete <strong><?php echo ucwords($drow['firstname'].' '.$row['lastname']); ?></strong> from the list? This method cannot be undone.</center></h5> 
                </div> 
				</div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-default" data-dismiss="modal"><span class="glyphicon glyphicon-remove"></span> Cancel</button>
                    <a href="delete.php?id=<?php echo $row['userid']; ?>" class="btn btn-danger"><span class="glyphicon glyphicon-trash"></span> Delete</a>
                </div>
 
            </div>
        </div>
    </div>
<!-- /.modal -->
 
<!-- Edit -->
    <div class="modal fade" id="edit<?php echo $row['userid']; ?>" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                    <center><h4 class="modal-title" id="myModalLabel">Edit</h4></center>
                </div>
                <div class="modal-body">
				<?php
					$edit=mysqli_query($conn,"select * from user where userid='".$row['userid']."'");
					$erow=mysqli_fetch_array($edit);
				?>
				<div class="container-fluid">
				<form method="POST" action="edit.php?id=<?php echo $erow['userid']; ?>">
					<div class="row">
						<div class="col-lg-2">
							<label style="position:relative; top:7px;">Firstname:</label>
						</div>
						<div class="col-lg-10">
							<input type="text" name="firstname" class="form-control" value="<?php echo $erow['firstname']; ?>">
						</div>
					</div>
					<div style="height:10px;"></div>
					<div class="row">
						<div class="col-lg-2">
							<label style="position:relative; top:7px;">Lastname:</label>
						</div>
						<div class="col-lg-10">
							<input type="text" name="lastname" class="form-control" value="<?php echo $erow['lastname']; ?>">
						</div>
					</div>
					<div style="height:10px;"></div>
					<div class="row">
						<div class="col-lg-2">
							<label style="position:relative; top:7px;">Address:</label>
						</div>
						<div class="col-lg-10">
							<input type="text" name="address" class="form-control" value="<?php echo $erow['address']; ?>">
						</div>
					</div>
                </div> 
				</div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-default" data-dismiss="modal"><span class="glyphicon glyphicon-remove"></span> Cancel</button>
                    <button type="submit" class="btn btn-warning"><span class="glyphicon glyphicon-check"></span> Save</button>
                </div>
				</form>
            </div>
        </div>
    </div>
<!-- /.modal -->

edit.php

The code for our Update Form.

<?php
	include('conn.php');
 
	$id=$_GET['id'];
 
	$firstname=$_POST['firstname'];
	$lastname=$_POST['lastname'];
	$address=$_POST['address'];
 
	mysqli_query($conn,"update user set firstname='$firstname', lastname='$lastname', address='$address' where userid='$id'");
	header('location:index.php');
 
?>

delete.php

Lastly, this our delete code to delete row in our table.

<?php
	include('conn.php');
	$id=$_GET['id'];
	mysqli_query($conn,"delete from user where userid='$id'");
	header('location:index.php');
 
?>

DEMO

That ends this tutorial. For any questions or comments, feel free to comment below or message me here. Hope this tutorial helps. Happy Coding :)

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