【www.gdgbn.com--远程及网络应用】

function get_content($url)
{
 if(!strpos($url, "://")) return "Invalid URI";
 $content = "";
 if(ini_get("allow_url_fopen"))
 {
  $content = file_get_contents($url);
 }
 elseif(function_exists("curl_init"))
 {
  $handle = curl_init();
  curl_setopt($handle, CURLOPT_URL, $url);
  curl_setopt($handle, CURLOPT_CONNECTTIMEOUT, 5);
  curl_setopt($handle, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($handle, CURLOPT_FOLLOWLOCATION, 0);
  $content = curl_exec($handle);
  curl_close($handle);
 }
 elseif(function_exists("fsockopen"))
 {
  $urlinfo = parse_url($url);
  $host = $urlinfo["host"];
  $str = explode($host, $url);
  $uri = $str[1];
  unset($urlinfo, $str);
  $content = "";
  $fp = fsockopen($host, 80, $errno, $errstr, 30);
  if(!$fp)
  {
   $content = "Can Not Open Socket...";
  }
  else
  {
   $out = "GET $uri   HTTP/1.1rn";
   $out.= "Host: $host rn";
   $out.= "Accept: */*rn";
   $out.= "User-Agent: $_SERVER[HTTP_USER_AGENT]rn";
   $out.= "Connection: Closernrn";
   fputs($fp, $out);
   while (!feof($fp))
   {
    $content .= fgets($fp, 4069);
   }
   fclose($fp);
  }
 }
 if(empty($content)) $content = "Can Not Open Url, Please Check You Server ...
For More Information, Please Visit www.111cn.net;
 return $content;
}

本文来源：http://www.gdgbn.com/asp/19352/