php 使用 CURL 从 URL 下载文件
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Download file from URL using CURL
提问by user1789813
I try to download file using a php-script from an URL like the following:
我尝试使用 php 脚本从如下 URL 下载文件：
http://www.xcontest.org/track.php?t=2avxjsv1.igc
The code I use looks like the following, but it produces empty download files only:
我使用的代码如下所示，但它只生成空下载文件：
$DLFile= "testfile.igc";
$DLURL="http://www.xcontest.org/track.php?t=2avxjsv1.igc";
$fp = fopen ($DLFile, 'w+');
$ch = curl_init($DLURL);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_exec($ch);
curl_close($ch);
fclose($fp);
An other strange thing is when entering the URL in the web browser I don't get the file. It can I could only download the file when clicking the link on the web site!.
另一个奇怪的事情是在网络浏览器中输入 URL 时我没有得到文件。我只能在单击网站上的链接时下载文件！。
Any advice is very appreciated!
任何建议都非常感谢！
回答by Chris
Give this a go
试一试
<?php
$output_filename = "testfile.igc";
$host = "http://www.xcontest.org/track.php?t=2avxjsv1.igc";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $host);
curl_setopt($ch, CURLOPT_VERBOSE, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_AUTOREFERER, false);
curl_setopt($ch, CURLOPT_REFERER, "http://www.xcontest.org");
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ch, CURLOPT_HEADER, 0);
$result = curl_exec($ch);
curl_close($ch);
print_r($result); // prints the contents of the collected file before writing..
// the following lines write the contents to a file in the same directory (provided permissions etc)
$fp = fopen($output_filename, 'w');
fwrite($fp, $result);
fclose($fp);
?>
or if you want to put it within a loop for parsing several links... you need some functions.. here is a rough idea....
或者如果你想把它放在一个循环中来解析几个链接......你需要一些功能......这是一个粗略的想法......
<?php
function collect_file($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_VERBOSE, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_AUTOREFERER, false);
curl_setopt($ch, CURLOPT_REFERER, "http://www.xcontest.org");
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ch, CURLOPT_HEADER, 0);
$result = curl_exec($ch);
curl_close($ch);
return($result);
}
function write_to_file($text,$new_filename){
$fp = fopen($new_filename, 'w');
fwrite($fp, $text);
fclose($fp);
}
// start loop here
$new_file_name = "testfile.igc";
$url = "http://www.xcontest.org/track.php?t=2avxjsv1.igc";
$temp_file_contents = collect_file($url);
write_to_file($temp_file_contents,$new_file_name)
// end loop here
?>
