<?phpfunction 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(" "," ",$url); ???if(function_exists(‘curl_init‘)) { ???????$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($opts); ???????exit($url); ???????if(@copy($url, $file, $context)) { ???????????//$http_response_header ???????????return $file; ???????} else { ???????????return false; ???????} ???}}?>
;
php自定义函数: 下载远程文件 httpcopy
原文地址：http://www.cnblogs.com/upup2015/p/7786804.html