fastDFS中使用php上传文件 -- http上传与下载图片
CleverCode研究完fastDFS后，尝试着使用php上传文件到fastdfs。
1 fastDFS安装
fastdfs分布式架构配置参考：http://blog.csdn.net/clevercode/article/details/52267080。
fastdfs使用nginx配置参考：http://blog.csdn.net/clevercode/article/details/52276169。
fastdfs缩略图生成参考：http://blog.csdn.net/clevercode/article/details/52278482。
2 fastDFS中php扩展的安装
2.1 安装
# cd /usr/local/src/fastdfs/FastDFS/php_client # /usr/local/php5/bin/phpize # ./configure --with-php-config=/usr/local/php5/bin/php-config # make && make install # cat fastdfs_client.ini >> /usr/local/php5/etc/php.ini
2.2 查看是否安装成功
# php -m | grep fastdfs_client
2.3 配置fastDFS的client.conf
# vi /etc/fdfs/client.conf
tracker_server=192.168.101.135:22122
http.tracker_server_port=80
2.4重启pkill php-fpm
# pkill php-fpm # /usr/local/php5/sbin/php-fpm
3 通过http上传
3.1 上传页面代码
test.php
<html>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="upFile" id="upFile" />
<br />
<input type="submit" name="submit" value="Submit" />
</form>
</body>
</html>
3.2 接收文件php
upload.php
<?php
//上传附件
function uploadAttach()
{/*{{{*/
$ret = array();
$ret['errorcode'] = 0;
$ret['errormsg'] = '';
if(!$_FILES || false == isset($_FILES["upFile"]))
{
$ret['errorcode'] = 1;
$ret['errormsg'] = "ERROR:upFile is not set";
return $ret;
}
$file = $_FILES["upFile"];
if (false == isset($file['tmp_name']) || false == is_file($file['tmp_name']))
{
$ret['errorcode'] = 2;
$ret['errormsg'] = "tmp_name is not file";
return $ret;
}
if (0 == filesize($file['tmp_name']))
{
$ret['errorcode'] = 3;
$ret['errormsg'] = "tmp_name filesize is 0";
return $ret;
}
$curlFile = new CurlFile($file['tmp_name'], $file['type'], $file['name']);
$fileSuffix = getSuffix($curlFile->getPostFilename());
$ret['file'] = $file;
$ret['fileId'] = uploadToFastdfs($curlFile, $fileSuffix);
return $ret;
}/*}}}*/
//获取后缀
function getSuffix($fileName)
{/*{{{*/
preg_match('/\.(\w+)?$/', $fileName, $matchs);
return isset($matchs[1])?$matchs[1]:'';
}/*}}}*/
//上传文件到fastdfs
function uploadToFastdfs(CurlFile $file, $fileSuffix)
{/*{{{*/
$fdfs = new FastDFS();
$tracker = $fdfs->tracker_get_connection();
$fileId = $fdfs->storage_upload_by_filebuff1(file_get_contents($file->getFilename()), $fileSuffix);
$fdfs->tracker_close_all_connections();
return $fileId;
}/*}}}*/
function start()
{
$ret = uploadAttach();
print_r($ret);
}
start();
?>
3.3 上传一张图片
3.4 上传结果
3.5 访问（下载） http://192.168.101.132/group1/M00/00/00/wKhlhVfBiu2AWrzoAAKp3t_hiGI748.png
4 curl上传
3 的http上传方式，需要在每一台php服务器上都按装fastdfs的php扩展。这里通过curl方式，直接上传到具有fastdfs扩展的php服务器上。
curlupload.php
<?php
function curl_multipart_post($url, $post_data = array(), $file_fields = array(), $timeout=30)
{/*{{{*/
$result = array('errno' => 0, 'errmsg' => '', 'result' => '');
$ch = curl_init();
//set various curl options first
// set url to post to
curl_setopt($ch, CURLOPT_URL, $url);
// return into a variable rather than displaying it
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
//set curl function timeout to $timeout
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_VERBOSE, false);
//set method to post
curl_setopt($ch, CURLOPT_POST, true);
// disable Expect header
// hack to make it working
$headers = array("Expect: ");
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
// initialize result post array
$result_post = array();
//generate post string
$post_array = array();
$post_strings = array();
if (!is_array($post_data)) {
$result['errno'] = 5;
$result['errmsg'] = 'Params error.';
return json_encode($result);
// return false;
}
foreach($post_data as $key=>$value) {
$post_array[$key] = $value;
$post_strings[] = urlencode($key)."=".urlencode($value);
}
$post_string = implode("&", $post_strings);
// set post string
// curl_setopt($ch, CURLOPT_POSTFIELDS, $post_string);
// set multipart form data - file array field-value pairs
if (!empty($file_fields)) {
foreach($file_fields as $key => $value) {
if (strpos(PHP_OS, "WIN") !== false) {
$value = str_replace("/", "\\", $value); // win hack
}
$file_fields[$key] = "@".$value;
}
}
// set post data
$result_post = array_merge($post_array, $file_fields);
curl_setopt($ch, CURLOPT_POSTFIELDS, $result_post);
// print_r($result_post);
//and finally send curl request
$output = curl_exec($ch);
$result['result'] = $output;
// print_r($result);
if (curl_errno($ch )) {
$result['errno'] = curl_errno($ch);
$result['errmsg'] = curl_error($ch);
// return false;
} else {
// return $result;
}
curl_close($ch);
return $result;
}/*}}}*/
function start()
{
$url = 'http://192.168.101.132/upload.php';
$post = array('signature' => 123456);
$fileFields = array('upFile' => '/data0/webRoot/upload.php');
$ret = curl_multipart_post($url,$post,$fileFields);
print_r($ret);
}
start();
?>
打印结果
