我正在尝试将 jpg 图像存储到 MySQL 数据库中，插入有效但我无法显示结果。
这是 MySQL 表定义:
drop table if exists product_image;
create table product_image(
id_img int not null primary key auto_increment,
name varchar(512),
img LONGBLOB NOT NULL,
id_product int not null
);
用于存储用户输入文件的 PHP 脚本:
<!DOCTYPE html>
<html>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="image" >
<input type="submit" value="Upload" name="submit">
</form>
<?php
$servername = "localhost";
$username = "root";
$password = "123456";
$dbname = "store";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
if (isset($_POST['submit'])) {
$imageName = mysql_real_escape_string($_FILES["image"]["name"]);
$imageData = mysql_real_escape_string(file_get_contents($_FILES["image"]["tmp_name"]));
$imageType = mysql_real_escape_string($_FILES["image"]["type"]);
if (substr($imageType, 0, 5) == "image") {
$sql = "insert into product_image (name,img,id_product) values ('$imageName','$imageData','65') ";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
echo $imageName, $imageType;
}
else {
echo "select image type:";
}
}
$conn->close();
?>
</body>
</html>
显示图片的PHP脚本:
<?php
header("content-type:image/jpg");
$servername = "localhost";
$username = "root";
$password = "123456";
$dbname = "store";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$q = "select * from product_image";
$result = $conn->query($q);
if ($result->num_rows > 0) {
// output data of each row
while ($row = $result->fetch_assoc()) {
$img = $row["img"];
#echo "id: " . $row["img"]. "<br>";
#echo '<img src="data:image;base64, '.$row["img"].' height="200" width="200">';
}
}
else {
echo "0 results";
}
echo $img;
$conn->close();
?>
当我调用 PHP 脚本查看图像时，我只看到小图标。有什么我想念的吗。
谢谢。
最佳答案
使用这样的东西
<img src="data:image/jpeg;base64,<?php echo base64_encode($row['img']); ?>" class="latest_images img-responsive img-thumbnail" alt="Cinque Terre" >
关于php - 使用 PHP 在 Mysql 中存储和检索 JPG，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30436864/