php结合web uploader插件实现分片上传文件

最近研究了下大文件上传的方法，找到了webuploader js 插件进行大文件上传，大家也可以参考这篇文章进行学习：《》

使用

使用webuploader分成简单直选要引入

<script type="text/javascript" src="webuploader文件夹/webuploader.js">

HTML部分

初始化Web Uploader

uploader = WebUploader.create({
// 不压缩image
resize: false,// swf文件路径
swf: 'uploader.swf',// 文件接收服务端。
server: upload.php,// 选择文件的按钮。可选。
// 内部根据当前运行是创建，可能是input元素，也可能是flash.
pick: '#picker',chunked: true,chunkSize:210241024,auto: true,accept: {
title: 'Images',extensions: 'gif,jpg,jpeg,bmp,png',mimeTypes: 'image/*'
}
});

upload.php处理

以下是根据别人的例子自己拿来改的php 后台代码

if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
exit; // finish preflight CORS requests here
}
if ( !empty($_REQUEST[ 'debug' ]) ) {
$random = rand(0,intval($_REQUEST[ 'debug' ]) );
if ( $random === 0 ) {
header("HTTP/1.0 500 Internal Server Error");
exit;
}
}

// header("HTTP/1.0 500 Internal Server Error");
// exit;
// 5 minutes execution time
@set_time_limit(5 60);
// Uncomment this one to fake upload time
// usleep(5000);
// Settings
// $targetDir = ini_get("upload_tmp_dir") . DIRECTORY_SEPARATOR . "plupload";
$targetDir = 'uploads'.DIRECTORY_SEPARATOR.'file_material_tmp';
$uploadDir = 'uploads'.DIRECTORY_SEPARATOR.'file_material';
$cleanupTargetDir = true; // Remove old files
$maxFileAge = 5 3600; // Temp file age in seconds
// Create target dir
if (!file_exists($targetDir)) {
@mkdir($targetDir);
}
// Create target dir
if (!file_exists($uploadDir)) {
@mkdir($uploadDir);
}
// Get a file name
if (isset($_REQUEST["name"])) {
$fileName = $_REQUEST["name"];
} elseif (!empty($_FILES)) {
$fileName = $FILES["file"]["name"];
} else {
$fileName = uniqid("file");
}
$oldName = $fileName;
$filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
// $uploadPath = $uploadDir . DIRECTORY_SEPARATOR . $fileName;
// Chunking might be enabled
$chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
$chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 1;
// Remove old temp files
if ($cleanupTargetDir) {
if (!is_dir($targetDir) || !$dir = opendir($targetDir)) {
die('{"jsonrpc" : "2.0","error" : {"code": 100,"message": "Failed to open temp directory."},"id" : "id"}');
}
while (($file = readdir($dir)) !== false) {
$tmpfilePath = $targetDir . DIRECTORYSEPARATOR . $file;
// If temp file is current file proceed to the next
if ($tmpfilePath == "{$filePath}{$chunk}.part" || $tmpfilePath == "{$filePath}_{$chunk}.parttmp") {
continue;
}
// Remove temp file if it is older than the max age and is not the current file
if (preg_match('/.(part|parttmp)$/',$file) && (@filemtime($tmpfilePath) < time() - $maxFileAge)) {
@unlink($tmpfilePath);
}
}
closedir($dir);
}

// Open temp file
if (!$out = @fopen("{$filePath}_{$chunk}.parttmp","wb")) {
die('{"jsonrpc" : "2.0","error" : {"code": 102,"message": "Failed to open output stream."},"id" : "id"}');
}
if (!empty($_FILES)) {
if ($_FILES["file"]["error"] || !is_uploaded_file($_FILES["file"]["tmp_name"])) {
die('{"jsonrpc" : "2.0","error" : {"code": 103,"message": "Failed to move uploaded file."},"id" : "id"}');
}
// Read binary input stream and append it to temp file
if (!$in = @fopen($_FILES["file"]["tmpname"],"rb")) {
die('{"jsonrpc" : "2.0","error" : {"code": 101,"message": "Failed to open input stream."},"id" : "id"}');
}
} else {
if (!$in = @fopen("php://input","id" : "id"}');
}
}
while ($buff = fread($in,4096)) {
fwrite($out,$buff);
}
@fclose($out);
@fclose($in);
rename("{$filePath}{$chunk}.parttmp","{$filePath}_{$chunk}.part");
$index = 0;
$done = true;
for( $index = 0; $index < $chunks; $index++ ) {
if ( !fileexists("{$filePath}{$index}.part") ) {
$done = false;
break;
}
}

if ( $done ) {
$pathInfo = pathinfo($fileName);
$hashStr = substr(md5($pathInfo['basename']),8,16);
$hashName = time() . $hashStr . '.' .$pathInfo['extension'];
$uploadPath = $uploadDir . DIRECTORY_SEPARATOR .$hashName;

if (!$out = @fopen($uploadPath,"wb")) {
die('{"jsonrpc" : "2.0","id" : "id"}');
}
if ( flock($out,LOCKEX) ) {
for( $index = 0; $index < $chunks; $index++ ) {
if (!$in = @fopen("{$filePath}{$index}.part","rb")) {
break;
}
while ($buff = fread($in,4096)) {
fwrite($out,$buff);
}
@fclose($in);
@unlink("{$filePath}_{$index}.part");
}
flock($out,LOCK_UN);
}
@fclose($out);
$response = [
'success'=>true,'oldName'=>$oldName,'filePaht'=>$uploadPath,'fileSize'=>$data['size'],'fileSuffixes'=>$pathInfo['extension'],'file_id'=>$data['id'],];

die(json_encode($response));
}

// Return Success JSON-RPC response
die('{"jsonrpc" : "2.0","result" : null,"id" : "id"}');

更多关于PHP文件上传的精彩内容请关注专题，希望对大家有帮助。

以上就是本文的全部内容，希望对大家的学习有所帮助。