<?php
 $timeout = 2;
 $errno = $errstr = '';
 
 $geo_url = "postalCodeSearchJSON?postalcode=28757&country=DE&maxRows=1"
 
 $fp = fsockopen("ws.geonames.org", 80, $errno, $errstr, $timeout);
 
 if ($fp) {
 
     fwrite($fp, "GET /".$geo_url." HTTP/1.0\r\n");
     fwrite($fp, "Host: ws.geonames.org\r\n");
     fwrite($fp, "Connection: Close\r\n\r\n");
 
     stream_set_blocking($fp, 0);
     stream_set_timeout($fp, $timeout);
     $info = stream_get_meta_data($fp);
 
     $json_str = '';
     $content_start = FALSE;
 
     while ((!feof($fp)) && (!$info['timed_out']) && $i++ < 500) {
 
         $string = fgets($fp, 4096);
 
         if (trim($string) == '') {
 
             usleep(50);
 
             continue;
         }
 
         $i = 0;
 
         if (!$content_start) {
 
             if (trim($string) == 'Content-Type: application/json;charset=UTF-8') {
 
                 $content_start = TRUE;
             }
 
             continue;
         }
 
         $json_str .= trim($string);
 
         $info = stream_get_meta_data($fp);
     }
 
     fclose($fp);
 
     if (!$info['timed_out']
         && trim($json_str) != '') {
         
         // Verarbeitung des JSon...
     }
 }
 ?>