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Tuesday, April 2, 2024

PHP and MySQL Upload Image

PHP and MySQL Upload Image

Bootstrap 5 https://getbootstrap.com/docs/5.1/getting-started/download/
index.php
//index.php
<!DOCTYPE html>
<html lang="en">

<head>
    <title>PHP and MySQL Upload Image</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.min.js"></script>
    <style>
        .image-preview {
            background-image: url('avatar.png');
            width: 14%;
            height: 100px;
            background-size: cover;
            background-position: center;
            border-radius: 10px;
        }

        .photo {
            width: 50px;
            height: 50px;
            border-radius: 50%;
        }
    </style>
</head>

<body>
    <?php
    include "dbcon.php";
    $sql = "select * from users order by name";
    $stmt = $conn->prepare($sql);
    $stmt->execute();
    $result = $stmt->get_result();
    include "upload.php";
    ?>
    <div class="container">
        <h1 class="mb-5">PHP and MySQL Upload Image</h1>
        <div class="table-responsive">
            <h2>List of users</h2>
            <a class="btn btn-primary" href="#" data-bs-toggle="modal" data-bs-target="#modalAddnew">Add New</a>

            <table class="mt-5 table table-bordered table-striped">
                <thead>
                    <tr>
                        <th scope="col">#</th>
                        <th scope="col">Name</th>
                        <th scope="col">Photo</th>
                        <th scope="col">Action</th>
                    </tr>
                </thead>
                <tbody>
                    <?php
                    if ($result->num_rows > 0) {
                        $counter = 0;
                        foreach ($result as $row) {
                            $counter++;
                    ?>
                            <tr class="">
                                <td scope="row"><?= $counter ?></td>
                                <td><?= $row['name'] ?></td>
                                <td><img class="photo" src="uploads/<?= $row['photo'] ?>"></td>
                                <td>
                                    <a href="index.php?id=<?= $row['id'] ?>" onclick="return confirm('Are you sure you want to delete the user?')">
                                        <button type="button" class="btn btn-danger" title="delete the user">
                                            Delete
                                        </button>
                                    </a>
                                </td>
                            </tr>
                        <?php }
                    } else { ?>
                        <tr>
                            <td>No users to display</td>
                        </tr>
                    <?php } ?>
                </tbody>
            </table>
        </div>
    </div>

    <!-- Modal -->
    <div class="modal fade" id="modalAddnew" tabindex="-1" role="dialog" aria-labelledby="modalTitleId" aria-hidden="true">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title" id="modalTitleId">
                        Add New
                    </h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                </div>
                <div class="modal-body">
                    <form action="" method="post" enctype="multipart/form-data">
                        <div class="mb-3">
                            <label for="name" class="form-label">Name</label>
                            <input type="text" class="form-control" name="name" id="name" aria-describedby="helpId" placeholder="Enter a Name" />
                            <div class="text-danger"><?= $name_err ?></div>
                        </div>
                        <div class="mb-3">
                            <label for="photo" class="form-label">Select A Photo</label>
                            <input type="file" class="form-control" name="photo" id="photo" placeholder="" aria-describedby="fileHelpId" onchange="previewImg(this)" />
                            <div id="fileHelpId" class="form-text">Allowed file types: jpg, jpeg, png</div>
                            <div class="text-danger"><?= $photo_err ?></div>
                        </div>
                        <div class="mb-5 image-preview"></div>
                        <button type="submit" name="submit" class="btn btn-primary">
                            Submit
                        </button>
                    </form>
                    <div class="text-danger"><?= $err_msg ?></div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">
                        Close
                    </button>
                </div>
            </div>
        </div>
    </div>
    <script>
        function previewImg(input) {
            if (input.files && input.files[0] != "") {
                var reader = new FileReader();
                reader.onload = function(e) {
                    $(".image-preview").css('background-image', 'url(' + e.target.result + ')');
                }
                reader.readAsDataURL(input.files[0]);
            }
        }
    </script>
</body>

</html>
dbcon.php
//dbcon.php
<?php

$server = "localhost";
$uid = "root";
$pwd = "root";
$dbname = "devproject";
$conn = new mysqli($server, $uid, $pwd, $dbname);

if ($conn->connect_error)
    die("database connection error " . $conn->connect_error);
upload.php
//  upload.php
<?php
$error = false;
$name_err = $photo_err = $err_msg = "";
$valid_ext = array('jpg', 'jpeg', 'png');

$target_dir = "uploads/";
$photo = "";

if (isset($_REQUEST['id']) && $_REQUEST['id'] != "") {
    // delete image
    $id = $_REQUEST['id'];

    $sql = "select photo from users where id=?";
    $stmt = $conn->prepare($sql);
    $stmt->bind_param("i", $id);
    $stmt->execute();
    $result = $stmt->get_result();
    if ($result->num_rows == 1) {
        $row = $result->fetch_assoc();
        $photo = $row['photo'];
    }

    if (file_exists($target_dir . $photo))
        unlink($target_dir . $photo);

    $sql = "delete from users where id=?";
    $stmt->prepare($sql);
    $stmt->bind_param('i', $id);
    $stmt->execute();
    header("location:index.php");
}

if(isset($_POST['submit'])){
    $name = $_POST['name'];

    if ($name ==""){
        $name_err = "Please enter the name";
        $error = true;
    }

    if($_FILES['photo']['name'] ==""){
        $photo_err = "Please select a photo";
        $error = true;
    }

    if (!$error){
        $image_name = $_FILES['photo']['name'];
        $image_tmp = $_FILES['photo']['tmp_name'];
        $image_size = $_FILES['photo']['size'];

        // check for extension

        $ext = strtolower(pathinfo($image_name, PATHINFO_EXTENSION));
        if (in_array($ext, $valid_ext)) {
            // valid extension
            if (exif_imagetype($image_tmp) == IMAGETYPE_JPEG || exif_imagetype($image_tmp) == IMAGETYPE_PNG) {
                // valid image
                if ($image_size > 4000000) {
                    // exceeds 4M
                    $err_msg = "image size exceeds 4M";
                } else {
                    // upload
                    $new_image = time() . "-" . basename($image_name);

                    try {
                        move_uploaded_file($image_tmp, $target_dir . $new_image);

                        // insert
                        try {
                            $sql = "insert into users (name, photo) values (?, ?)";
                            $stmt = $conn->prepare($sql);
                            $stmt->bind_param("ss", $name, $new_image);
                            $stmt->execute();
                            header("location:index.php");
                        } catch (Exception $e) {
                            $err_msg = $e->getMessage();
                        }
                    } catch (Exception $e) {
                        $err_msg = $e->getMessage();
                    }
                }
            } else {
                $err_msg = "Not a valid image file";
            }
        } else {
            $err_msg = "Not a valid extension";
        }
    }

}
Github - PHP and MySQL Upload Image

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