PHP-CRUD-3 : How to edit and update data into database in php mysql

How to edit and update data into database in php mysql

Hie Guys, as we are continued from the part 1 of php crud for fetching the data in a table and from that table, we have a Edit Button where we click to edit the data. so to setup this your table goto this link : 

http://fundaofwebit.com/tutorial/php-solutions/php-crud-part-1-how-to-display-fetch-data-in-php

Step 1: After your data fetched in a table now you have to create a file named updatedata.php and paste below code:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
    <title>PHP CRUD - Edit and Update Data</title>
</head>
<body>
    <?php
    $connection = mysqli_connect("localhost","root","");
    $db = mysqli_select_db($connection'phpcrud');

    $id = $_POST['id'];

    $query = "SELECT * FROM student WHERE id='$id";
    $query_run = mysqli_query($connection$query);

    if($query_run)
    {
        while($row = mysqli_fetch_array($query_run))
        {
            ?>
            <div class="container">
                <div class="jumbotron">
                    <div class="row">
                        <div class="col-md-12">
                            
                            <h2> PHP - CRUD : Update Data</h2>
                            <hr>
                            <form action="" method="post">
                                <input type="hidden" name="id" value="<?php echo $row['id'?>">
                                <div class="form-group">
                                    <label for=""> First Name </label>
                                    <input type="text" name="fname" class="form-control" value="<?php echo $row['fname'?>" placeholder="Enter First Name" required>
                                </div>
                                <div class="form-group">
                                    <label for=""> Last Name </label>
                                    <input type="text" name="lname" class="form-control" value="<?php echo $row['lname'?>" placeholder="Enter Last Name" required>
                                </div>
                                <div class="form-group">
                                    <label for=""> Contact </label>
                                    <input type="text" name="contact" class="form-control" value="<?php echo $row['contact'?>" placeholder="Enter Contact" required>
                                </div>

                                <button type="submit" name="update" class="btn btn-primary"> Update Data </button>

                                <a href="index.php" class="btn btn-danger"> CANCEL </a>
                            </form>

                        </div>
                    </div>
                    
                    <?php
                    if(isset($_POST['update']))
                    {
                        $fname = $_POST['fname'];
                        $lname = $_POST['lname'];
                        $contact = $_POST['contact'];

                        $query = "UPDATE student SET fname='$fname', lname='$lname', contact=$contactWHERE id='$id'  ";
                        $query_run = mysqli_query($connection$query);

                        if($query_run)
                        {
                            echo '<script> alert("Data Updated"); </script>';
                            header("location:index.php");
                        }
                        else
                        {
                            echo '<script> alert("Data Not Updated"); </script>';
                        }
                    }
                    ?>

                </div>
            </div>
            <?php
        }
    }
    else
    {
        // echo '<script> alert("No Record Found"); </script>';
        ?>
        <div class="container">
            <div class="row">
                <div class="col-md-12">
                    <h4>No Record Found</h4>
                </div>
            </div>
        </div>
        <?php
    }
    ?>
</body>
</html>



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