带有 ng-file-upload + PHP 的断点续传(合并部分)

Question

我正在尝试使用断点续传模式实现ng文件上传，以将大文件拆分为块并在上传后合并它们。我已经在许多项目中实现了ng文件上传，但这是我第一次上传这么大的文件。

我的问题是我不知道如何让它在 PHP 中的服务器端文件工作。我只需要上传具有不同名称的块，但我无法合并它们。

任何人都可以在 PHP 中发布服务器端代码的示例来使此功能工作吗？

这就是我到目前为止所做的：

AngularJS

$scope.uploadMediaFile = function (file) {
if(file) {
Upload.upload({
ignoreLoadingBar: true,
url: 'app/api/upload/mediaFile.php',
resumeChunkSize: '1MB',
file: file
}).then(function (response) {
if(response.data.success) {
$scope.post.mediaFile = response.data.filename;
$scope.post.duration = response.data.duration;
} else {
console.error(response.data.error);
}
}, null, function (evt) {
console.log(part);
file.progress = Math.min(100, parseInt(100.0 * evt.loaded / evt.total));
});
}
};

媒体文件.php

$filename = $_FILES['file']['name'];
$file_tmp = $_FILES['file']['tmp_name'];
$file_ext = pathinfo($filename, PATHINFO_EXTENSION);
$file_des = $_SERVER['DOCUMENT_ROOT'] . '/storage/content/temp/';
if(!file_exists($file_des)) mkdir($file_des);
// Puting a diferent name for each file part
$new_filename = uniqid() . "." . pathinfo($filename, PATHINFO_EXTENSION);
move_uploaded_file($file_tmp, $file_des . $new_filename)

到目前为止，我得到了许多具有不同名称的相同文件。

Answer 1

以防万一有人看到类似的问题，我发布了我的解决方案。

<?php
// File chunk
$filename = $_FILES['file']['name'];
$file_tmp = $_FILES['file']['tmp_name'];

// Defining temporary directory
$file_des = $_SERVER['DOCUMENT_ROOT'] . '/storage/content/temp/';
// If not exists, create temp dir.
if(!file_exists($file_des)) mkdir($file_des);
// The first chunk have the original name of file uploaded
// so, if it exists in temp dir, upload the other pieces 
// with anothers uniques names
if(file_exists($file_des . $filename)) {
$new_name = uniqid() . "." . pathinfo($filename, PATHINFO_EXTENSION);
move_uploaded_file($file_tmp, $file_des . $new_name);
// Now, append the chunk file to the first base file.
$handle = fopen($file_des . $new_name, 'rb');
$buff = fread($handle, filesize($file_des . $new_name));
fclose($handle);
$final = fopen($file_des . $filename, 'ab');
$write = fwrite($final, $buff);
fclose($final);
// Delete chunk
unlink($file_des . $new_name);
} else {
/* MAKE SURE WE DELETE THE CONTENT OF THE DESTINATION FOLDER FIRST, 
OTHERWISE CHUNKS WILL BE APPENDED FOR EVER 
IN CASE YOU ARE TRYING TO UPLOAD A FILE WITH THE EXACT SAME NAME. 
CAREFUL: YOU MAY PREFER TO DELETE ONLY THE FILE 
INSTEAD OF THE FOLDER'S CONTENT, IN THE CASE 
YOUR FOLDER CONTAINS MORE THAN ONE FILE.
*/
$files_to_delete = glob($file_des."*"); // get all file names
foreach($files_to_delete as $file) // iterate files
{ 
if(is_file($file))
{
unlink($file); // delete file
}
}

// First chunk of file with original name.
move_uploaded_file($file_tmp, $file_des . $filename);
}