PHP Crud is the necessary part of PHP language when you start any language first you need to learn Crud operation.
PHP Crud with MySQL Database and MySQLI Query
PHP is the most popular language for dynamic websites. Using PHP language you can communicate with the database and you can insert, update, select and delete data, In this lesson, we will use MySQLI, not MySQL because MySQL is not supported in PHP7. so at least you need to use MySQLI(Procedural) or MySQLI(oops) concept but in this article, we will create PHP Crud application using MySQLI(Procedural) concept. so let's get started.
[Download Source Code ##download##]
Follow the following steps:
- Create Database
- Table
- connection.php
- Index.php
- Update.php
- Delete.php
create database php_crudCREATE TABLE `students` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(50) NOT NULL,
`marks` varchar(50) NOT NULL,
`department` varchar(50) NOT NULL,
`result` varchar(50) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=latin1<?php
$con = mysqli_connect("localhost","root","","php_crud");
?>
<!DOCTYPE html>
<html>
<head>
<title>PHP Crud Using Mysqli</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.16/css/dataTables.bootstrap4.min.css">
</head>
<body>
<div class="container" style="margin-top: 70px;">
<div class="row justify-content-center">
<div class="col-md-10 text-center">
<?php
include "connection.php";
if(isset($_POST['submit'])){
$student_name = $_POST['student_name'];
$student_marks = $_POST['marks'];
$student_department = $_POST['department'];
$student_result = $_POST['result'];
$Query = mysqli_query($con, "INSERT INTO students (name,marks,department,result) VALUES ('$student_name','$student_marks', '$student_department','$student_result')");
if($Query){
echo "<script>alert('Student record is successfully inserted!')</script>";
}else{
echo "<script>alert('Sorry an error occured!')</script>";
}
}
?>
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
Add Record
</button>
<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<form method="POST" action="">
<div class="form-group">
<input type="text" name="student_name" class="form-control" placeholder="Enter Name..." required="">
</div><!-- form-group -->
<div class="form-group">
<input type="text" name="marks" class="form-control" placeholder="Enter marks..." required="">
</div><!-- form-group -->
<div class="form-group">
<input type="text" name="department" class="form-control" placeholder="Enter Department..." required="">
</div><!-- form-group -->
<div class="form-group">
<input type="text" name="result" class="form-control" placeholder="Enter result..." required="">
</div><!-- form-group -->
<div class="form-group">
<input type="submit" name="submit" class="btn btn-info" value="Add Student">
</div><!-- form-group -->
</form><!-- form -->
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
<table id="example" class="table table-striped table-bordered" width="100%" cellspacing="0">
<thead>
<tr>
<th>Name</th>
<th>Marks</th>
<th>Department</th>
<th>Result</th>
<th>Update</th>
<th>Delete</th>
</tr>
</thead>
<tbody>
<?php
$Show = mysqli_query($con, "SELECT * FROM students");
while($r = mysqli_fetch_array($Show)): ?>
<tr>
<td><?php echo $r['name']; ?></td>
<td><?php echo $r['marks']; ?></td>
<td><?php echo $r['department']; ?></td>
<td><?php echo $r['result']; ?></td>
<td><a href="update.php?update_id=<?php echo $r['id']; ?>" class="btn btn-warning">
Update
</a></td>
<td><a href="delete.php?delete_id=<?php echo $r['id']; ?>" class="btn btn-danger">
Delete
</a></td>
</tr>
<?php endwhile; ?>
</tbody>
</table>
</div><!-- col -->
</div><!-- row -->
</div><!-- container -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>
<script type="text/javascript" src="https://cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<script type="text/javascript" src="https://cdn.datatables.net/1.10.16/js/dataTables.bootstrap4.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#example').DataTable();
} );
</script>
</body>
</html>
<?php include "connection.php";
if(isset($_POST['update'])){
$name = $_POST['student_name'];
$marks = $_POST['marks'];
$department = $_POST['department'];
$result = $_POST['result'];
$id = $_POST['edit_id'];
$query = mysqli_query($con, "UPDATE students SET name = '$name' ,marks = '$marks', department = '$department', result = '$result' WHERE id = '$id'");
if ($query) {
header("location:index.php");
}else{
echo "<script>alert('Sorry update query not work')</script>";
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title>PHP Crud Using Mysqli</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
</head>
<body>
<div class="container" style="margin-top: 70px;">
<div class="row justify-content-center">
<div class="col-md-10 text-center">
<?php
if(isset($_GET['update_id'])): ?>
<?php $id = $_GET['update_id']; ?>
<?php $query = mysqli_query($con, "SELECT * FROM students WHERE id = '$id' ");
$r = mysqli_fetch_array($query);
$name = $r['name'];
$marks = $r['marks'];
$department = $r['department'];
$result = $r['result'];
?>
<form method="POST" action="update.php">
<div class="form-group">
<input type="text" name="student_name" class="form-control" placeholder="Enter Name..." required="" value="<?php echo $name; ?>">
</div><!-- form-group -->
<div class="form-group">
<input type="text" name="marks" class="form-control" placeholder="Enter marks..." required="" value="<?php echo $marks; ?>">
</div><!-- form-group -->
<div class="form-group">
<input type="text" name="department" class="form-control" placeholder="Enter Department..." required="" value="<?php echo $department; ?>">
</div><!-- form-group -->
<div class="form-group">
<input type="text" name="result" class="form-control" placeholder="Enter result..." required="" value="<?php echo $result; ?>">
</div><!-- form-group -->
<input type="hidden" name="edit_id" value="<?php echo $id; ?>">
<div class="form-group">
<input type="submit" name="update" class="btn btn-info" value="Edit Student">
</div><!-- form-group -->
</form><!-- form -->
<?php endif; ?>
</div><!-- col -->
</div><!-- row -->
</div><!-- container -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>
</body>
</html>
<?php
include 'connection.php';
if(isset($_GET['delete_id'])){
$id = $_GET['delete_id'];
$query = mysqli_query($con, "DELETE FROM students WHERE id = '$id'");
if($query){
header("location:index.php");
}else{
echo "<script>alert('Sorry delete query not work!')</script>";
}
}
?>
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