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php上传图片存入数据库示例分享

表结构

复制代码 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;

index.html

复制代码 代码如下:

<!doctype html>

<html>

<head>

<title>

Post-Image

</title>

</head>

<body>

<form action="post.php" method="post" enctype="multipart/form-data">

<input type="file" name="file" id="file"/>

<input type="submit" value="OK"/>

</form>

</body>

</html>

post.php

复制代码 代码如下:

<?php

if ($_FILES["file"]["error"] > 0)

{

echo "Error: " . $_FILES["file"]["error"] . "<br />";

}

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 '<pre>';

try{

$pdo = new PDO($dsn,'root','root');

$pdo->exec("INSERT INTO `upload`(`type`,`data`) values ('$type',0x$data)");

$id = $pdo->lastInsertId();

echo 'upload success!<a href="view.php?id='.$id.'">View</a>';

$pdo = null;

}catch (PDOException $e){

echo $e->getMessage();

}

echo '</pre>';

fclose($fp);

}

view.php

复制代码 代码如下:

<?php

$id = $_GET['id'];

if(is_numeric($id)){

$dsn='mysql:host=localhost;dbname=test';

try{

$pdo = new PDO($dsn,'root','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();

}