PHP Instance code: Implement remote download file to local function _php tutorial

Often write collector publishing interface need to use the function of remote attachment, so I wrote a php remote download file to local function, generally enough, if the server supports the Curl function, the program will prefer curl, Because the test results show that Curl's response time and resource occupancy rate is much smaller than file_get_contents; if you have good suggestions and improvement programs, please leave a message to me Oh!

Code:

Copy to ClipboardWhat to refer to: [www.bkjia.com] Echo httpcopy ("Http://www.baidu.com/img/baidu_sylogo1.gif");

function Httpcopy ($url, $file = "", $timeout =60) {
$file = Empty ($file)? PathInfo ($url, pathinfo_basename): $file;
$dir = PathInfo ($file, pathinfo_dirname);
!is_dir ($dir) && @mkdir ($dir, 0755,true);
$url = Str_replace ("", "%20", $url);

if (function_exists (' Curl_init ')) {
$ch = Curl_init ();
curl_setopt ($ch, Curlopt_url, $url);
curl_setopt ($ch, Curlopt_timeout, $timeout);
curl_setopt ($ch, Curlopt_returntransfer, TRUE);
$temp = curl_exec ($ch);
if (@file_put_contents ($file, $temp) &&!curl_error ($ch)) {
return $file;
} else {
return false;
}
} else {
$opts = Array (
"http" =>array (
"Method" = "GET",
"Header" = "",
"Timeout" = $timeout)
);
$context = Stream_context_create ($opts);
if (@copy ($url, $file, $context)) {
$http _response_header
return $file;
} else {
return false;
}
}
}
?>

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