Efficient method for large file uploads ( 0 - 5GB ) through php
I suggest you use PHP I/O streams with AJAX. This will keep the memory footprint low on the server and you can easily build an async file upload. Note that this uses the HTML5 API which is available only in modern browsers.
Check out this post: https://web.archive.org/web/20170803172549/http://www.webiny.com/blog/2012/05/07/webiny-file-upload-with-html5-and-ajax-using-php-streams/
Pasting the code from the article here:
HTML
<input type="file" name="upload_files" id="upload_files" multiple="multiple">JS
function upload(fileInputId, fileIndex) { // take the file from the input var file = document.getElementById(fileInputId).files[fileIndex]; var reader = new FileReader(); reader.readAsBinaryString(file); // alternatively you can use readAsDataURL reader.onloadend = function(evt) { // create XHR instance xhr = new XMLHttpRequest(); // send the file through POST xhr.open("POST", 'upload.php', true); // make sure we have the sendAsBinary method on all browsers XMLHttpRequest.prototype.mySendAsBinary = function(text){ var data = new ArrayBuffer(text.length); var ui8a = new Uint8Array(data, 0); for (var i = 0; i < text.length; i++) ui8a[i] = (text.charCodeAt(i) & 0xff); if(typeof window.Blob == "function") { var blob = new Blob([data]); }else{ var bb = new (window.MozBlobBuilder || window.WebKitBlobBuilder || window.BlobBuilder)(); bb.append(data); var blob = bb.getBlob(); } this.send(blob); } // let's track upload progress var eventSource = xhr.upload || xhr; eventSource.addEventListener("progress", function(e) { // get percentage of how much of the current file has been sent var position = e.position || e.loaded; var total = e.totalSize || e.total; var percentage = Math.round((position/total)*100); // here you should write your own code how you wish to proces this }); // state change observer - we need to know when and if the file was successfully uploaded xhr.onreadystatechange = function() { if(xhr.readyState == 4) { if(xhr.status == 200) { // process success }else{ // process error } } }; // start sending xhr.mySendAsBinary(evt.target.result); }; }PHP
// read contents from the input stream$inputHandler = fopen('php://input', "r");// create a temp file where to save data from the input stream$fileHandler = fopen('/tmp/myfile.tmp', "w+"); // save data from the input streamwhile(true) { $buffer = fgets($inputHandler, 4096); if (strlen($buffer) == 0) { fclose($inputHandler); fclose($fileHandler); return true; } fwrite($fileHandler, $buffer);}
May be the tus HTTP-based resumable file upload protocol and its implementations?