note 49478 added to function.fopen

An improved version of zwiskle's cached_fopen_url(). This accounts for the fact that the destination website might not respond or time out thereby stalling the source server. <?php /******************************************* * Function cached_fopen_url(): * Caches data from a HTTP resource/url to a * local file (HTTP headers are stipped) * @returns a file resoruce / or FALSE if failure. **/ function cached_fopen_url($url, $file_mode, $timeout_seconds = 90, $cache_path = "/yourpath/tmp", $fsocket_timeout = 10) {        $debug = true;        clearstatcache();    $cache_filename=$cache_path . "/" . urlencode($url) .".cached";        if ($debug) {       print "local_cache creation_time =" .       @filemtime($cache_filename) .       " actual time = " . time() .       " timeout = " .       timeout_seconds ."<p>";    }        if ( ( @file_exists($cache_filename ) and ( ( @filemtime($cache_filename) + $timeout_seconds) > ( time() ) ) ) ) {       // ok, file is already cached and young enouth       if ($debug) { print "using cached file ($cache_filename) <p>";}    } else {              if ($debug) { print "cacheing file ($url) to local ($cache_filename)<p>";}              $urlParts = parse_url($url);       $host = $urlParts['host'];       $port = (isset($urlParts['port'])) ? $urlParts['port'] : 80;              if( !$fp = @fsockopen( $host, $port, $errno, $errstr, $fsocket_timeout )) {          // Server not responding                 } else {                    if( !fputs( $fp, "GET $url HTTP/1.0\r\nHost:$host\r\n\r\n" )) {             die( "unable to send get request" );          }                    $data = null;          stream_set_timeout($fp, $fsocket_timeout);             $status = socket_get_status($fp);          while( !feof($fp) && !$status['timed_out'])                   {             $data .= fgets ($fp,8192);             $status = socket_get_status($fp);          }          fclose ($fp);                    // strip headers          $sData = split("\r\n\r\n", $data, 2);          $data = $sData[1];                    // save to cache file          $f2 = fopen($cache_filename,"w+");          fwrite($f2,$data);          fclose($f2);       }    }        // ok, point to (fresh) cached file    if ( @file_exists($cache_filename )) {       $handle = fopen($cache_filename, $file_mode);       return $handle;    }        return false; } ?> ---- Manual Page -- http://www.php.net/manual/en/function.fopen.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+49478 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+49478&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+49478&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+49478&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+49478&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+49478&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+49478&report=yes Search -- http://master.php.net/manage/user-notes.php