如何以 PHP 上傳 500MB 以上的大檔案?
可以使用 PHP 以兩種方式上傳大檔案。下面將介紹這兩種方式。
- 透過更改 php.ini 檔案中的 upload_max_filesize 限制。
- 透過實現檔案塊上傳來達到該目的,即在上傳時將檔案拆分為較小的塊,並在上傳完成時組裝這些塊。
可以按照如下方式更新 php.ini 檔案
upload_max_filesize = 50M post_max_size = 50M max_input_time = 300 max_execution_time = 300
應避免這樣做,因為這樣會同時更改伺服器的設定和其他專案。
更新 htaccess 檔案
php_value upload_max_filesize 50M php_value post_max_size 50M php_value max_input_time 300 php_value max_execution_time 300
更改內聯設定
<?php // changing the upload limits ini_set('upload_max_filesize', '50M'); ini_set('post_max_size', '50M'); ini_set('max_input_time', 300); ini_set('max_execution_time', 300); // destination folder is set $source = $_FILES["file-upload"]["tmp_name"]; $destination = $_FILES["file-upload"]["name"]; // uploaded folder is moved to the destination move_uploaded_file($source, $destination); ?>
分塊
在這個過程中,會將一個大檔案拆分為多個較小的部分,然後再上傳。可以下載並使用“Plupload”庫。
<?php // the response function function verbose($ok=1,$info=""){ // failure to upload throws 400 error if ($ok==0) { http_response_code(400); } die(json_encode(["ok"=>$ok, "info"=>$info])); } // invalid upload if (empty($_FILES) || $_FILES['file']['error']) { verbose(0, "Failed to move uploaded file."); } // upload destination $filePath = __DIR__ . DIRECTORY_SEPARATOR . "uploads"; if (!file_exists($filePath)) { if (!mkdir($filePath, 0777, true)) { verbose(0, "Failed to create $filePath"); } } $fileName = isset($_REQUEST["name"]) ? $_REQUEST["name"] : $_FILES["file"]["name"]; $filePath = $filePath . DIRECTORY_SEPARATOR . $fileName; // dealing with the chunks $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0; $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 0; $out = @fopen("{$filePath}.part", $chunk == 0 ? "wb" : "ab"); if ($out) { $in = @fopen($_FILES['file']['tmp_name'], "rb"); if ($in) { while ($buff = fread($in, 4096)) { fwrite($out, $buff); } } else { verbose(0, "Failed to open input stream"); } @fclose($in); @fclose($out); @unlink($_FILES['file']['tmp_name']); } else { verbose(0, "Failed to open output stream"); } // check if file was uploaded if (!$chunks || $chunk == $chunks - 1) { rename("{$filePath}.part", $filePath); } verbose(1, "Upload OK"); ?>
當嘗試上傳一個大小超過 500 MB 的檔案時,可以成功上傳該檔案。
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