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

<?phpif (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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