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图片保存数据库

2015-08-20 15:24 369 查看

// 数据库连接文件，conn.php
/*
blob 类型最长只能存65535个字节，
所以保存图片时，可用更大的类型，
mediumblog/longblob
*/
$conn = mysql_connect('localhost', 'root', '');
mysql_select_db('test', $conn);
mysql_query("set names utf8");

//上传图片处理 upload.php
header("Content-type:text/html;charset=utf-8");
include('./conn.php');
if($_POST['submit'])
{
if($_FILES['image']['size'])
{
$name = $_FILES['image']['name'];
$arr = explode('.',$name);
$name = $arr[0];
$date = date('Y-m-d H:i:s');
$fp = fopen($_FILES['image']['tmp_name'], 'rb');
$type = $_FILES['image']['type'];
if(!$fp)
{
echo('读取图片失败!');
}else
{
$image = addslashes(fread($fp, filesize($_FILES['image']['tmp_name'])));
if($image)
{
$q = "insert into image(name,pic,type,date) values ('{$name}', '{$image}', '{$type}', '{$date}')";
$result = mysql_query($q);
if($result)
{
echo('上传成功');
}else
{
echo ('上传失败');
}
}
}

}else
{
echo('请选择上传的图片');
}
}

// 读取图片文件： image.php
include('./conn.php');
$id = $_GET['id'];
$sql = "select * from image where id = '{$id}'";
$result = mysql_query($sql, $conn);
if(!$result)
{
die('读取数据库图片失败');
}
$num = mysql_num_rows($result);
if($num <1)
{
die('暂无图片!!');
}
$row = mysql_fetch_assoc($result);

$data = $row['pic'];
$type = $row['type'];
header("Content-type:$type");
echo $data;

// 显示及上传文件： index.php
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>图片，文件上传</title>
</head>
<body>
<?php
include('./conn.php');
?>
<form method = 'post' action='./upload.php' enctype="multipart/form-data">
<input type="file" name="image" />
<input type="submit" name="submit" value="submit" />
</form>
<hr />
<?php
$ret = mysql_query("select * from image order by id desc");
while($row = mysql_fetch_assoc($ret))
{
?>
<img src="image.php?id=<?php echo $row['id']; ?>" />

<?php
echo $row['date'];
}

?>
</body>
</html>

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