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本文实例讲述了php+resumablejs实现的分块上传 断点续传功能。分享给大家供大家参考,具体如下:
resumablejs官网 http://www.resumablejs.com/
本站下载地址。
upload.html
<!DOCTYPE html> <html lang="en"> <div> <a href="#" rel="external nofollow" id="browseButton" >Select files</a> <div> <div> <input id="btnCancel" type="button" onClick='r.pause()'value="Cancel All Uploads" style="margin-left: 2px; height: 22px; font-size: 8pt;" /> <br /> </div> <script src="/UploadFiles/2021-04-02/resumable.js">upload.php
<": {$str}\r\n"; echo $log_str; // log to file if (($fp = fopen('upload_log.txt', 'a+')) !== false) { fputs($fp, $log_str); fclose($fp); } } /** * * Delete a directory RECURSIVELY * @param string $dir - directory path * @link http://php.net/manual/en/function.rmdir.php */ function rrmdir($dir) { if (is_dir($dir)) { $objects = scandir($dir); foreach ($objects as $object) { if ($object != "." && $object != "..") { if (filetype($dir . "/" . $object) == "dir") { rrmdir($dir . "/" . $object); } else { unlink($dir . "/" . $object); } } } reset($objects); rmdir($dir); } } /** * * Check if all the parts exist, and * gather all the parts of the file together * @param string $dir - the temporary directory holding all the parts of the file * @param string $fileName - the original file name * @param string $chunkSize - each chunk size (in bytes) * @param string $totalSize - original file size (in bytes) */ function createFileFromChunks($temp_dir, $fileName, $chunkSize, $totalSize) { // count all the parts of this file $total_files = 0; foreach(scandir($temp_dir) as $file) { if (stripos($file, $fileName) !== false) { $total_files++; } } // check that all the parts are present // the size of the last part is between chunkSize and 2*$chunkSize if ($total_files * $chunkSize >= ($totalSize - $chunkSize + 1)) { // create the final destination file if (($fp = fopen('temp/'.$fileName, 'w')) !== false) { for ($i=1; $i<=$total_files; $i++) { fwrite($fp, file_get_contents($temp_dir.'/'.$fileName.'.part'.$i)); _log('writing chunk '.$i); } fclose($fp); } else { _log('cannot create the destination file'); return false; } // rename the temporary directory (to avoid access from other // concurrent chunks uploads) and than delete it if (rename($temp_dir, $temp_dir.'_UNUSED')) { rrmdir($temp_dir.'_UNUSED'); } else { rrmdir($temp_dir); } } } //////////////////////////////////////////////////////////////////// // THE SCRIPT //////////////////////////////////////////////////////////////////// //check if request is GET and the requested chunk exists or not. this makes testChunks work if ($_SERVER['REQUEST_METHOD'] === 'GET') { $temp_dir = 'temp/'.$_GET['resumableIdentifier']; $chunk_file = $temp_dir.'/'.$_GET['resumableFilename'].'.part'.$_GET['resumableChunkNumber']; if (file_exists($chunk_file)) { header("HTTP/1.0 200 Ok"); } else { header("HTTP/1.0 404 Not Found"); } } // loop through files and move the chunks to a temporarily created directory if (!empty($_FILES)) foreach ($_FILES as $file) { // check the error status if ($file['error'] != 0) { _log('error '.$file['error'].' in file '.$_POST['resumableFilename']); continue; } // init the destination file (format <filename.ext>.part<#chunk> // the file is stored in a temporary directory $temp_dir = 'temp/'.$_POST['resumableIdentifier']; $dest_file = $temp_dir.'/'.$_POST['resumableFilename'].'.part'.$_POST['resumableChunkNumber']; // create the temporary directory if (!is_dir($temp_dir)) { mkdir($temp_dir, 0777, true); } // move the temporary file if (!move_uploaded_file($file['tmp_name'], $dest_file)) { _log('Error saving (move_uploaded_file) chunk '.$_POST['resumableChunkNumber'].' for file '.$_POST['resumableFilename']); } else { // check if all the parts present, and create the final destination file createFileFromChunks($temp_dir, $_POST['resumableFilename'], $_POST['resumableChunkSize'], $_POST['resumableTotalSize']); } }更多关于PHP相关内容感兴趣的读者可查看本站专题:《php文件操作总结》、《PHP网络编程技巧总结》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家PHP程序设计有所帮助。
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暂无php+resumablejs实现的分块上传 断点续传功能示例的评论...
稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!
昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。
这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。
而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?