Я использую php для загрузки файлов, а не самого файла, который открывается в новом окне. Кажется, что он работает нормально для небольших файлов, но не работает для больших файлов (мне нужно, чтобы это работало на очень больших файлах). Вот код, который я должен загрузить:
function downloadFile($file) { if (file_exists($file)) { //download file header('Content-Description: File Transfer'); header('Content-Type: application/octet-stream'); header('Content-Disposition: attachment; filename='.basename($file)); header('Content-Transfer-Encoding: binary'); header('Expires: 0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: public'); header('Content-Length: '.filesize($file)); ob_clean(); flush(); readfile($file); exit; }; }; Но когда я пытаюсь загрузить большой файл (пример 265mb), браузер сообщает мне, что он не может найти файл? Файлы на сервере определенно, и скрипт отлично работает для небольших файлов. Есть ли способ загрузки больших файлов, похожих на то, что у меня уже есть?
PHP имеет ограничения на продолжительность работы сценария и количество памяти, которое он может использовать. Возможно, сценарий синхронизируется до того, как он завершит работу, или использует слишком много памяти, читая в большом файле.
Попробуйте memory_limit переменные max_execution_time и memory_limit в php.ini . Если у вас нет доступа к php.ini , попробуйте функции set_time_limit и / или ini_set .
Я вижу, вы используете ob_clean . Если включена буферизация вывода, попробуйте отключить ее (например, заменив вызов ob_clean с помощью ob_clean ).
Этот сценарий загрузки способен загружать очень большие файлы (МБ или ГБ). Также убедитесь, что вы установили ini-настройки, как указано . Для массово больших файлов обычно лучше использовать метод X-Sendfile в PHP. Подробнее здесь . Во всяком случае, я публикую рабочий код. Возможно, это полезно для людей, ищущих безошибочный рабочий сценарий. Сценарий взят из PHPsnips , надеюсь, вы сочтете это полезным.
/** * @author Jack Mason * @website volunteer @ http://www.osipage.com, web access application and bookmarking tool. * @copyright Free script, use anywhere as you like, no attribution required */ /* You may need these ini settings too */ set_time_limit(0); ini_set('memory_limit', '512M'); //THE DOWNLOAD SCRIPT $filePath = "D:/Software/versions/windows/windows_7.rar"; // set your download file path here. download($filePath); // calls download function function download($filePath) { if(!empty($filePath)) { $fileInfo = pathinfo($filePath); $fileName = $fileInfo['basename']; $fileExtnesion = $fileInfo['extension']; $default_contentType = "application/octet-stream"; $content_types_list = mimeTypes(); // to find and use specific content type, check out this IANA page : http://www.iana.org/assignments/media-types/media-types.xhtml if (array_key_exists($fileExtnesion, $content_types_list)) { $contentType = $content_types_list[$fileExtnesion]; } else { $contentType = $default_contentType; } if(file_exists($filePath)) { $size = filesize($filePath); $offset = 0; $length = $size; //HEADERS FOR PARTIAL DOWNLOAD FACILITY BEGINS if(isset($_SERVER['HTTP_RANGE'])) { preg_match('/bytes=(\d+)-(\d+)?/', $_SERVER['HTTP_RANGE'], $matches); $offset = intval($matches[1]); $length = intval($matches[2]) - $offset; $fhandle = fopen($filePath, 'r'); fseek($fhandle, $offset); // seek to the requested offset, this is 0 if it's not a partial content request $data = fread($fhandle, $length); fclose($fhandle); header('HTTP/1.1 206 Partial Content'); header('Content-Range: bytes ' . $offset . '-' . ($offset + $length) . '/' . $size); }//HEADERS FOR PARTIAL DOWNLOAD FACILITY BEGINS //USUAL HEADERS FOR DOWNLOAD header("Content-Disposition: attachment;filename=".$fileName); header('Content-Type: '.$contentType); header("Accept-Ranges: bytes"); header("Pragma: public"); header("Expires: -1"); header("Cache-Control: no-cache"); header("Cache-Control: public, must-revalidate, post-check=0, pre-check=0"); header("Content-Length: ".filesize($filePath)); $chunksize = 8 * (1024 * 1024); //8MB (highest possible fread length) if ($size > $chunksize) { $handle = fopen($_FILES["file"]["tmp_name"], 'rb'); $buffer = ''; while (!feof($handle) && (connection_status() === CONNECTION_NORMAL)) { $buffer = fread($handle, $chunksize); print $buffer; ob_flush(); flush(); } if(connection_status() !== CONNECTION_NORMAL) { echo "Connection aborted"; } fclose($handle); } else { ob_clean(); flush(); readfile($filePath); } } else { echo 'File does not exist!'; } } else { echo 'There is no file to download!'; } } /* Function to get correct MIME type for download */ function mimeTypes() { /* Just add any required MIME type if you are going to download something not listed here.*/ $mime_types = array("323" => "text/h323", "acx" => "application/internet-property-stream", "ai" => "application/postscript", "aif" => "audio/x-aiff", "aifc" => "audio/x-aiff", "aiff" => "audio/x-aiff", "asf" => "video/x-ms-asf", "asr" => "video/x-ms-asf", "asx" => "video/x-ms-asf", "au" => "audio/basic", "avi" => "video/x-msvideo", "axs" => "application/olescript", "bas" => "text/plain", "bcpio" => "application/x-bcpio", "bin" => "application/octet-stream", "bmp" => "image/bmp", "c" => "text/plain", "cat" => "application/vnd.ms-pkiseccat", "cdf" => "application/x-cdf", "cer" => "application/x-x509-ca-cert", "class" => "application/octet-stream", "clp" => "application/x-msclip", "cmx" => "image/x-cmx", "cod" => "image/cis-cod", "cpio" => "application/x-cpio", "crd" => "application/x-mscardfile", "crl" => "application/pkix-crl", "crt" => "application/x-x509-ca-cert", "csh" => "application/x-csh", "css" => "text/css", "dcr" => "application/x-director", "der" => "application/x-x509-ca-cert", "dir" => "application/x-director", "dll" => "application/x-msdownload", "dms" => "application/octet-stream", "doc" => "application/msword", "dot" => "application/msword", "dvi" => "application/x-dvi", "dxr" => "application/x-director", "eps" => "application/postscript", "etx" => "text/x-setext", "evy" => "application/envoy", "exe" => "application/octet-stream", "fif" => "application/fractals", "flr" => "x-world/x-vrml", "gif" => "image/gif", "gtar" => "application/x-gtar", "gz" => "application/x-gzip", "h" => "text/plain", "hdf" => "application/x-hdf", "hlp" => "application/winhlp", "hqx" => "application/mac-binhex40", "hta" => "application/hta", "htc" => "text/x-component", "htm" => "text/html", "html" => "text/html", "htt" => "text/webviewhtml", "ico" => "image/x-icon", "ief" => "image/ief", "iii" => "application/x-iphone", "ins" => "application/x-internet-signup", "isp" => "application/x-internet-signup", "jfif" => "image/pipeg", "jpe" => "image/jpeg", "jpeg" => "image/jpeg", "jpg" => "image/jpeg", "js" => "application/x-javascript", "latex" => "application/x-latex", "lha" => "application/octet-stream", "lsf" => "video/x-la-asf", "lsx" => "video/x-la-asf", "lzh" => "application/octet-stream", "m13" => "application/x-msmediaview", "m14" => "application/x-msmediaview", "m3u" => "audio/x-mpegurl", "man" => "application/x-troff-man", "mdb" => "application/x-msaccess", "me" => "application/x-troff-me", "mht" => "message/rfc822", "mhtml" => "message/rfc822", "mid" => "audio/mid", "mny" => "application/x-msmoney", "mov" => "video/quicktime", "movie" => "video/x-sgi-movie", "mp2" => "video/mpeg", "mp3" => "audio/mpeg", "mpa" => "video/mpeg", "mpe" => "video/mpeg", "mpeg" => "video/mpeg", "mpg" => "video/mpeg", "mpp" => "application/vnd.ms-project", "mpv2" => "video/mpeg", "ms" => "application/x-troff-ms", "mvb" => "application/x-msmediaview", "nws" => "message/rfc822", "oda" => "application/oda", "p10" => "application/pkcs10", "p12" => "application/x-pkcs12", "p7b" => "application/x-pkcs7-certificates", "p7c" => "application/x-pkcs7-mime", "p7m" => "application/x-pkcs7-mime", "p7r" => "application/x-pkcs7-certreqresp", "p7s" => "application/x-pkcs7-signature", "pbm" => "image/x-portable-bitmap", "pdf" => "application/pdf", "pfx" => "application/x-pkcs12", "pgm" => "image/x-portable-graymap", "pko" => "application/ynd.ms-pkipko", "pma" => "application/x-perfmon", "pmc" => "application/x-perfmon", "pml" => "application/x-perfmon", "pmr" => "application/x-perfmon", "pmw" => "application/x-perfmon", "pnm" => "image/x-portable-anymap", "pot" => "application/vnd.ms-powerpoint", "ppm" => "image/x-portable-pixmap", "pps" => "application/vnd.ms-powerpoint", "ppt" => "application/vnd.ms-powerpoint", "prf" => "application/pics-rules", "ps" => "application/postscript", "pub" => "application/x-mspublisher", "qt" => "video/quicktime", "ra" => "audio/x-pn-realaudio", "ram" => "audio/x-pn-realaudio", "ras" => "image/x-cmu-raster", "rgb" => "image/x-rgb", "rmi" => "audio/mid", "roff" => "application/x-troff", "rtf" => "application/rtf", "rtx" => "text/richtext", "scd" => "application/x-msschedule", "sct" => "text/scriptlet", "setpay" => "application/set-payment-initiation", "setreg" => "application/set-registration-initiation", "sh" => "application/x-sh", "shar" => "application/x-shar", "sit" => "application/x-stuffit", "snd" => "audio/basic", "spc" => "application/x-pkcs7-certificates", "spl" => "application/futuresplash", "src" => "application/x-wais-source", "sst" => "application/vnd.ms-pkicertstore", "stl" => "application/vnd.ms-pkistl", "stm" => "text/html", "svg" => "image/svg+xml", "sv4cpio" => "application/x-sv4cpio", "sv4crc" => "application/x-sv4crc", "t" => "application/x-troff", "tar" => "application/x-tar", "tcl" => "application/x-tcl", "tex" => "application/x-tex", "texi" => "application/x-texinfo", "texinfo" => "application/x-texinfo", "tgz" => "application/x-compressed", "tif" => "image/tiff", "tiff" => "image/tiff", "tr" => "application/x-troff", "trm" => "application/x-msterminal", "tsv" => "text/tab-separated-values", "txt" => "text/plain", "uls" => "text/iuls", "ustar" => "application/x-ustar", "vcf" => "text/x-vcard", "vrml" => "x-world/x-vrml", "wav" => "audio/x-wav", "wcm" => "application/vnd.ms-works", "wdb" => "application/vnd.ms-works", "wks" => "application/vnd.ms-works", "wmf" => "application/x-msmetafile", "wps" => "application/vnd.ms-works", "wri" => "application/x-mswrite", "wrl" => "x-world/x-vrml", "wrz" => "x-world/x-vrml", "xaf" => "x-world/x-vrml", "xbm" => "image/x-xbitmap", "xla" => "application/vnd.ms-excel", "xlc" => "application/vnd.ms-excel", "xlm" => "application/vnd.ms-excel", "xls" => "application/vnd.ms-excel", "xlt" => "application/vnd.ms-excel", "xlw" => "application/vnd.ms-excel", "xof" => "x-world/x-vrml", "xpm" => "image/x-xpixmap", "xwd" => "image/x-xwindowdump", "z" => "application/x-compress", "rar" => "application/x-rar-compressed", "zip" => "application/zip"); return $mime_types; } ?>