طریقه استفاده از تابع دانلود فایل

[soroush.r70]

من یه تابع دانلود فایل گیر اوردم به چه صورت می تونم ازش استفاده کنم که وقتی روی لینک دانلود کلیک شد فایل دانلود بشه

تابع function.php :


<?php
function output_file($Source_File, $Download_Name, $mime_type='')
{
/*
$Source_File = path to a file to output
$Download_Name = filename that the browser will see
$mime_type = MIME type of the file (Optional)


if(!is_readable($Source_File)) die('File not found or inaccessible!');

$size = filesize($Source_File);
$Download_Name = rawurldecode($Download_Name);

/* Figure out the MIME type (if not specified) */
$known_mime_types=array(
"pdf" => "application/pdf",
"csv" => "application/csv",
"txt" => "text/plain",
"html" => "text/html",
"htm" => "text/html",
"exe" => "application/octet-stream",
"zip" => "application/zip",
"rar" => "application/rar",
"doc" => "application/msword",
"xls" => "application/vnd.ms-excel",
"ppt" => "application/vnd.ms-powerpoint",
"gif" => "image/gif",
"png" => "image/png",
"jpeg"=> "image/jpg",
"jpg" => "image/jpg",
"php" => "text/plain"
);

if($mime_type==''){
$file_extension = strtolower(substr(strrchr($Source_File,"."),1));
if(array_key_exists($file_extension, $known_mime_types)){
$mime_type=$known_mime_types[$file_extension];
} else {
$mime_type="application/force-download";
};
};

@ob_end_clean(); //off output buffering to decrease Server usage

// if IE, otherwise Content-Disposition ignored
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');

header('Content-Type: ' . $mime_type);
header('Content-Disposition: attachment; filename="'.$Download_Name.'"');
header("Content-Transfer-Encoding: binary");
header('Accept-Ranges: bytes');


header("Cache-control: private");
header('Pragma: private');
header("Expires: Thu, 26 Jul 2012 05:00:00 GMT");

// multipart-download and download resuming support
if(isset($_SERVER['HTTP_RANGE']))
{
list($a, $range) = explode("=",$_SERVER['HTTP_RANGE'],2);
list($range) = explode(",",$range,2);
list($range, $range_end) = explode("-", $range);
$range=intval($range);
if(!$range_end) {
$range_end=$size-1;
} else {
$range_end=intval($range_end);
}

$new_length = $range_end-$range+1;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range-$range_end/$size");
} else {
$new_length=$size;
header("Content-Length: ".$size);
}

/* output the file itself */
$chunksize = 1*(1024*1024); //you may want to change this
$bytes_send = 0;
if ($Source_File = fopen($Source_File, 'r'))
{
if(isset($_SERVER['HTTP_RANGE']))
fseek($Source_File, $range);

while(!feof($Source_File) &&
(!connection_aborted()) &&
($bytes_send<$new_length)
)
{
$buffer = fread($Source_File, $chunksize);
print($buffer); //echo($buffer); // is also possible
flush();
$bytes_send += strlen($buffer);
}
fclose($Source_File);
} else die('Error - can not open file.');

die();
}
?>

استفاده :

include("function.php");
set_time_limit(0);
$file_path="phpgang.csv";
output_file($file_path, 'phpgang.csv', 'application/csv');

[soroush.r70]

راهی نداره....؟