使用cURL限制下载带宽 [英] Limiting Bandwidth of Download with cURL
本文介绍了使用cURL限制下载带宽的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我一直在尝试用PHP限制带宽。我无法使用PHP限制下载速度。
I have been trying to limit the bandwidth with PHP. I can't get the download rate to be limited with PHP.
请问您在这里提供帮助吗?
Can you please help here?
function total_filesize($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "$url");
curl_setopt($ch, CURLINFO_SPEED_DOWNLOAD,12); //ITS NOT WORKING!
curl_setopt($ch, CURLOPT_USERAGENT,
"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) ".
"Gecko/20071127 Firefox/2.0.0.11");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_NOBODY, true);
$chStore = curl_exec($ch);
$chError = curl_error($ch);
$chInfo = curl_getinfo($ch);
curl_close($ch);
return $size = $chInfo['download_content_length'];
}
function __define_url($url) {
$basename = basename($url);
Define('filename',$basename);
$define_file_size = total_filesize($url);
Define('filesizes',$define_file_size);
}
function _download_file($url_file) {
__define_url($url_file);
// $range = "50000-60000";
$filesize = filesizes;
$file = filename;
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="'.$file.'"');
header('Content-Transfer-Encoding: binary');
header("Content-Length: $filesize");
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"$url_file");
curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
// curl_setopt($ch, CURLOPT_RANGE,$range);
curl_exec($ch);
curl_close($ch);
}
_download_file('http://rarlabs.com/rar/wrar393.exe');
推荐答案
CURLOPT_MAX_RECV_SPEED_LARGE
是您想要的选项。
CURLOPT_MAX_RECV_SPEED_LARGE
is the option you want.
在curl 7.15.5中添加。自 PHP 5.4.0
Added in curl 7.15.5. Present in PHP/CURL since PHP 5.4.0
这篇关于使用cURL限制下载带宽的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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