大部分人的图片上传都是保存一个路径到数据库，这样在插入时确实快，也符合web的特点，但是在删除时就很麻烦，需要找到文件并删除，该代码能够把代码直接存入数据库，删除时一并删除。请注意：这样的话数据库大小会激增，请酌情使用
表结构
代码如下:
CREATE TABLE `upload` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`type` varchar(20) NOT NULL,
`data` mediumblob NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`type` varchar(20) NOT NULL,
`data` mediumblob NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
index.html
代码如下:
post.PHP
代码如下:
PHP
if ($_FILES["file"]["error"] > 0)
{
echo "Error: " . $_FILES["file"]["error"] . "
";
}
else
{
$type = $_FILES["file"]["type"];
$size = $_FILES['file']['size'];
$tmp=$_FILES["file"]["tmp_name"];
$fp = fopen($tmp,'rb');
$data = bin2hex(fread($fp,$size));
$dsn='MysqL:host=localhost;dbname=test';
echo '
fclose($fp);
}
if ($_FILES["file"]["error"] > 0)
{
echo "Error: " . $_FILES["file"]["error"] . "
";
}
else
{
$type = $_FILES["file"]["type"];
$size = $_FILES['file']['size'];
$tmp=$_FILES["file"]["tmp_name"];
$fp = fopen($tmp,'rb');
$data = bin2hex(fread($fp,$size));
$dsn='MysqL:host=localhost;dbname=test';
echo '
';';
try{
$pdo = new PDO($dsn,'root','root');
$pdo->exec("INSERT INTO `upload`(`type`,`data`) values ('$type',0x$data)");
$id = $pdo->lastInsertId();
echo 'upload success!';
$pdo = null;
}catch (PDOException $e){
echo $e->getMessage();
}
echo '
fclose($fp);
}
view.php
代码如下:
PHP
$id = $_GET['id'];
if(is_numeric($id)){
$dsn='MysqL:host=localhost;dbname=test';
try{
$pdo = new PDO($dsn,'root');
$rs = $pdo->query('select * from `upload` where `id`='.$id);
$row = $rs->fetchAll();
$data = $row[0];
header("Content-Type:${data['type']}");
echo $data['data'];
$pdo = null;
}catch (PDOException $e){
echo $e->getMessage();
}
}else{
exit();
}
$id = $_GET['id'];
if(is_numeric($id)){
$dsn='MysqL:host=localhost;dbname=test';
try{
$pdo = new PDO($dsn,'root');
$rs = $pdo->query('select * from `upload` where `id`='.$id);
$row = $rs->fetchAll();
$data = $row[0];
header("Content-Type:${data['type']}");
echo $data['data'];
$pdo = null;
}catch (PDOException $e){
echo $e->getMessage();
}
}else{
exit();
}
