PHP 实现文件分段上传
2019-08-13 本文已影响23人
会长__
1.安装
composer require huizhang/file-segment-upload
2.代码示例
html
<!doctype html>
<html lang="en">
<body>
<form action="./Exampl1.php">
<input type="file" name="file" id="file">
</form>
<script>
var uploadObj = new SegmentUpload();
var fileDom = document.getElementById("file");
fileDom.onchange = function(){
uploadObj.addFileAndSend(this);
};
function SegmentUpload() {
const length = 1024*10; // 文件包大小
const requestUrl = './Exampl1.php';
const requestType = 'POST'; // 请求方式
var request = new XMLHttpRequest();
var start = 0; // 截取下标开始位置
var end = length; // 截取下标结束位置
var nowPackage=''; // 文件包
var nowPackageNum = 1; // 当前包数
var totalPackageNum = 0; // 总共包数
var file = null;
this.addFileAndSend = function(that){
file = that.files[0];
totalPackageNum = Math.ceil(file.size / length);
blob = cutFile();
sendFile(blob);
nowPackageNum += 1;
};
cutFile = function (){
nowPackage = file.slice(start, end);
start = end;
end = start + length;
};
sendFile = function (){
var formData = new FormData();
formData.append('file',nowPackage);
formData.append('blob_num',nowPackageNum);
formData.append('total_blob_num',totalPackageNum);
formData.append('file_name',file.name);
request.open(requestType, requestUrl, false);
request.onreadystatechange = function () {
var t = setTimeout(function(){
if(start < file.size){
blob = cutFile(file);
sendFile(nowPackage,file);
nowPackageNum += 1;
}else{
setTimeout(t);
}
},1000);
};
request.send(formData);
}
}
</script>
</body>
</html>
php
<?php
require_once '../vendor/autoload.php';
use Huizhang\FileSegmentUpload\FileSegmentUpload;
$obj = new FileSegmentUpload();
$res = $obj->upload([
'tmp_name' => $_FILES['file']['tmp_name'], // 文件内容
'now_package_num' => $_POST['blob_num'], // 当前文件包数量
'total_package_num' => $_POST['total_blob_num'], // 文件包总量
'file_name' => $_POST['file_name'], // 文件名称(唯一)
'file_path' => './upload', // 文件存放路径
'clear_interval_time' => 60, // 清理临时文件间隔，默认五分钟
'is_continuingly' => true // 是否断点续传，默认为true
]);
var_dump(json_encode([200,$res]));die;
3.test过程
1.png
2.png
3.png
