😅MySQL BLOB using PHP FULL (ok)

https://phppot.com/php/mysql-blob-using-php/

https://www.digitalocean.com/community/tutorials/how-to-use-the-mysql-blob-data-type-to-store-images-with-php-on-ubuntu-18-04#step-1-creating-a-database

Ví dụ 1:

C:\xampp71\htdocs\testpro\index.php

<?php
require_once __DIR__ . '/db.php';
if (count($_FILES) > 0) {
  if (is_uploaded_file($_FILES['userImage']['tmp_name'])) {
    $imgData = file_get_contents($_FILES['userImage']['tmp_name']);
    $imgType = $_FILES['userImage']['type'];
    $sql = 'INSERT INTO tbl_image(imageType ,imageData) VALUES(?, ?)';
    $statement = $conn->prepare($sql);
    $statement->bind_param('ss', $imgType, $imgData);
    $current_id = $statement->execute() or die('<b>Error:</b> Problem on Image Insert<br/>' . mysqli_connect_error());
  }
}
?>
<HTML>
<HEAD>
  <TITLE>Upload Image to MySQL BLOB</TITLE>
  <link href='css/form.css' rel='stylesheet' type='text/css' />
  <link href='css/style.css' rel='stylesheet' type='text/css' />
  <style>
    .image-gallery {
      text-align: center;
    }
    .image-gallery img {
      padding: 3px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
      border: 1px solid #FFFFFF;
      border-radius: 4px;
      margin: 20px;
    }
  </style>
</HEAD>
<BODY>
  <form name='frmImage' enctype='multipart/form-data' action='' method='post'>
    <div class='phppot-container tile-container'>
      <label>Upload Image File:</label>
      <div class='row'>
        <input name='userImage' type='file' class='full-width' />
      </div>
      <div class='row'>
        <input type='submit' value='Submit' />
      </div>
    </div>
    <div class='image-gallery'>
      <?php require_once __DIR__ . '/listImages.php';
      ?>
    </div>
  </form>
</BODY>
</HTML>

C:\xampp71\htdocs\testpro\listImages.php

<?php
$sql = 'SELECT imageId FROM tbl_image ORDER BY imageId DESC';
$stmt = $conn->prepare( $sql );
$stmt->execute();
$result = $stmt->get_result();
?>
<?php
if ( $result->num_rows > 0 ) {
    while ( $row = $result->fetch_assoc() ) {
        ?>
        <?php ?>
        <img src = "imageView.php?image_id=<?php echo $row["imageId'];?>'>
        <?php
    }
}
?>

C:\xampp71\htdocs\testpro\db.php

<?php
$conn = mysqli_connect( 'localhost', 'root', '', 'db_add_blob' );
?>

C:\xampp71\htdocs\testpro\structure.sql

CREATE TABLE `tbl_image` (
  `imageId` int(11) NOT NULL,
  `imageType` varchar(255) NOT NULL,
  `imageData` longblob NOT NULL
);
--
-- Indexes for dumped tables
--
--
-- Indexes for table `tbl_image`
--
ALTER TABLE `tbl_image`
ADD PRIMARY KEY (`imageId`);
--
-- AUTO_INCREMENT for dumped tables
--
--
-- AUTO_INCREMENT for table `tbl_image`
--
ALTER TABLE `tbl_image`
MODIFY `imageId` int(11) NOT NULL AUTO_INCREMENT;

C:\xampp71\htdocs\testpro\css\form.css

input, textarea, select {
	box-sizing: border-box;
	width: 200px;
	height: initial;
	padding: 8px 5px;
	border: 1px solid #9a9a9a;
	border-radius: 4px;
}
input[type="checkbox"] {
	width: auto;
	vertical-align: text-bottom;
}
textarea {
	width: 300px;
}
select {
	display: initial;
	height: 30px;
	padding: 2px 5px;
}
button, input[type=submit], input[type=button] {
	padding: 8px 20px;
	font-size: 1em;
	cursor: pointer;
	border-radius: 25px;
	color: #000000;
	background-color: #ffc72c;
	border-color: #ffd98e #ffbe3d #de9300;
}
input[type=submit]:hover {
	background-color: #f7c027;
}
::placeholder {
	color: #bdbfc4;
}
label {
	display: block;
	color: #565656;
}

C:\xampp71\htdocs\testpro\css\style.css

body {
	font-family: -apple-system, BlinkMacSystemFont, Roboto, Segoe UI,
		Helvetica Neue, Helvetica, Arial, sans-serif;
	margin: 0 auto;
	-webkit-font-smoothing: antialiased;
	box-sizing: border-box;
	color: #2f2f2f;
	line-height: 1.5;
}
a {
	text-decoration: none;
	color: #2f20d1;
}
a:hover {
	text-decoration: underline;
}
img {
	height: auto;
	max-width: 100%;
	vertical-align: middle;
}
.phppot-container {
	width: 740px;
	margin: 20 auto;
	padding: 0px 20px 0px 20px;
}
.row {
	padding: 6px 0 6px 0;
}
.label {
	color: #565656;
	margin-bottom: 2px;
}
.card {
	padding: 1rem 2rem;
	border-radius: 4px;
	box-shadow: 0 1px 3px #747681;
}
.message {
	padding: 6px 20px;
	font-size: 1em;
	color: rgb(40, 40, 40);
	box-sizing: border-box;
	margin: 0px;
	border-radius: 3px;
	width: 100%;
	overflow: auto;
}
.error {
	background-color: #fb817c;
	border: 1px solid #e46b66;
}
.success {
	background-color: #48e0a4;
	border: #40cc94 1px solid;
}
.validation-message {
	color: #e20900;
}
.font-bold {
	font-weight: bold;
}
.display-none {
	display: none;
}
.inline-block {
	display: inline-block;
}
.float-right {
	float: right;
}
.float-left {
	float: left;
}
.text-center {
	text-align: center;
}
.text-left {
	text-align: left;
}
.text-right {
	text-align: right;
}
.full-width {
	width: 100%;
}
.cursor-pointer {
	cursor: pointer;
}
.mr-20 {
	margin-right: 20px;
}
.m-20 {
	margin: 20px;
}
.tile-container {
	width: 240px;
	border: #9a9a9a 1px solid;
	border-radius: 3px;
	padding: 10px 20px 10px 20px;
}
@media all and (max-width: 780px) {
	.phppot-container {
		width: auto;
	}
}
@media all and (max-width: 400px) {
	.phppot-container {
		padding: 0px 20px;
	}
	.tile-container {
		width: auto;
	}
	input, textarea, select {
		width: 100%;
	}
}

Ví dụ 2:

How To Use the MySQL BLOB Data Type to Store Images with PHP on Ubuntu 18.04 | DigitalOceanDigitalOcean

CREATE TABLE `products` (product_id BIGINT PRIMARY KEY AUTO_INCREMENT, product_name VARCHAR(50), price DOUBLE, product_image BLOB) ENGINE = InnoDB;

C:\xampp71\htdocs\testpro\config.php

<?php
define('DB_NAME', 'db_add_blob');
define('DB_USER', 'root');
define('DB_PASSWORD', '');
define('DB_HOST', 'localhost');
$pdo = new PDO("mysql:host=" . DB_HOST . "; dbname=" . DB_NAME, DB_USER, DB_PASSWORD);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);

C:\xampp71\htdocs\testpro\insert_products.php

<?php
require_once 'config.php';
$products = [];
$products[] = [
  'product_name' => 'VIRTUAL SERVERS',
  'price' => 5,
  'product_image' => file_get_contents('https://i.imgur.com/VEIKbp0.png')
];
$products[] = [
  'product_name' => 'MANAGED KUBERNETES',
  'price' => 30,
  'product_image' => file_get_contents('https://i.imgur.com/cCc9Gw9.png')
];
$products[] = [
  'product_name' => 'MySQL DATABASES',
  'price' => 15,
  'product_image' => file_get_contents('https://i.imgur.com/UYcHkKD.png')
];
$sql = 'INSERT INTO products(product_name, price, product_image) VALUES (:product_name, :price, :product_image)';
foreach ($products as $product) {
  $stmt = $pdo->prepare($sql);
  $stmt->execute($product);
}
echo 'Records inserted successfully';

C:\xampp71\htdocs\testpro\display_products.php

<html>
<title>Using BLOB and MySQL</title>
<body>
  <?php
  require_once 'config.php';
  $sql = "SELECT * FROM products";
  $stmt = $pdo->prepare($sql);
  $stmt->execute();
  ?>
  <table border='1' align='center'>
    <caption>Products Database</caption>
    <tr>
      <th>Product Id</th>
      <th>Product Name</th>
      <th>Price</th>
      <th>Product Image</th>
    </tr>
    <?php
    while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
      echo '<tr>';
      echo '<td>' . $row['product_id'] . '</td>';
      echo '<td>' . $row['product_name'] . '</td>';
      echo '<td>' . $row['price'] . '</td>';
      echo '<td>' .
        '<img src = "data:image/png;base64,' . base64_encode($row['product_image']) . '" width = "50px" height = "50px"/>'
        . '</td>';
      echo '</tr>';
    }
    ?>
  </table>
</body>
</html>

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