IP2Location.php
private function readIsp($pointer) {
    if (false === $pointer) {
      // Deal with invalid IPs
      $isp = self::INVALID_IP_ADDRESS;
    } elseif (0 === self::$columns[self::ISP][$this->type]) {
      // If the field is not suported, return accordingly
      $isp = self::FIELD_NOT_SUPPORTED;
    } else {
      // Read isp name
      $isp = $this->readString($pointer + self::$columns[self::ISP][$this->type]);
    }
    return $isp;
  }
private function readIsp($pointer) {
    if (false === $pointer) {
      // Deal with invalid IPs
      $isp = self::INVALID_IP_ADDRESS;
    } elseif (0 === self::$columns[self::ISP][$this->type]) {
      // If the field is not suported, return accordingly
      $isp = self::FIELD_NOT_SUPPORTED;
    } else {
      // Read isp name
      $isp = $this->readString($pointer + self::$columns[self::ISP][$this->type]);
    }
    return $isp;
  }
private function readIsp ( $ pointer ) { if ( false === $ pointer ) { // Deal with invalid IPs $ isp = self :: INVALID_IP_ADDRESS ; } elseif ( 0 === self :: $ columns [ self :: ISP ] [ $ this -> type ] ) { // If the field is not suported, return accordingly $ isp = self :: FIELD_NOT_SUPPORTED ; } else { // Read isp name $ isp = $ this -> readString ( $ pointer + self :: $ columns [ self :: ISP ] [ $ this -> type ] ) ; } return $ isp ; }
High level function to fetch the ISP name

@access private
@param int $pointer  Position to read from, if false, return self::INVALID_IP_ADDRESS
@return string
High level function to fetch the ISP name