PHP上传图片到数据库并显示

PHP 上传图片到数据库并显示

1、创建数据表

CREATE TABLE ccs_image (
  id int(4) unsigned NOT NULL auto_increment,
  description varchar(250) default NULL,
  bin_data longblob,
  filename varchar(50) default NULL,
  filesize varchar(50) default NULL,
  filetype varchar(50) default NULL,
  PRIMARY KEY (id)
)engine=myisam DEFAULT charset=utf8

2、用于上传图片到服务器的页面 upimage.html

<!doctype html>
<html>
<head>
    <Meta charset=UTF-8>
    <Meta name=viewport
          content=width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0>
    <Meta http-equiv=X-UA-Compatible content=ie=edge>
    <style type=text/css>
        *{margin: 1%}
    </style>
    <title>Document</title>
</head>
<body>
<form method=post action=upimage.PHP enctype=multipart/form-data>
    描述:
    <input type=text name=form_description size=40>
    <input type=hidden name=MAX_FILE_SIZE value=1000000> <br>
    上传文件到数据库:
    <input type=file name=form_data size=40><br>
    <input type=submit name=submit value=submit>
</form>
</body>
</html>

3、处理图片上传的PHP upimage.PHP

<?PHP
if (isset($_POST['submit'])) {
    $form_description = $_POST['form_description'];
    $form_data_name = $_FILES['form_data']['name'];
    $form_data_size = $_FILES['form_data']['size'];
    $form_data_type = $_FILES['form_data']['type'];
    $form_data = $_FILES['form_data']['tmp_name'];
    
    $dsn = 'MysqL:dbname=test;host=localhost';
    $pdo = new PDO($dsn, 'root', 'root');
    $data = addslashes(fread(fopen($form_data, r), filesize($form_data)));
    //echo MysqLPicture=.$data;
    
    $result = $pdo->query(INSERT INTO ccs_image (description,bin_data,filename,filesize,filetype)
                  VALUES ('$form_description','$data','$form_data_name','$form_data_size','$form_data_type'));
    if ($result) {
        echo 图片已存储到数据库;
    } else {
        echo 请求失败,请重试;

注:图片是以二进制blob形式存进数据库的,像这样

4、显示图片的PHP getimage.PHP

<?PHP
 
    $id =2;// $_GET['id']; 为简洁,直接将id写上了,正常应该是通过用户填入的id获取的
    $dsn ='MysqL:dbname=test;host=localhost';
    $pdo = new PDO($dsn,'root','root');
    $query = select bin_data,filetype from ccs_image where id=2;
    $result = $pdo->query($query);
    $result = $result->fetchAll(2);
//    var_dump($result);
    $data = $result[0]['bin_data'];
    $type = $result[0]['filetype'];
    Header( Content-type: $type);
    echo $data;

5、到浏览器查看已经上传的图片,看是否可以显示

是没有问题的,证明图片已经以二进制的形式存储到数据库了

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PHP上传图片到数据库并显示

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