怎么把下面的代码改成php4的写法？我不会写php5
提示错误arse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in D:\temp\pb\CountryFromIP.inc.php on line 11
我没有装php5。。。
[PHP]
<?Php
/**
* This class generates the country name and its flag from its IP address
*
*
* @author Rochak Chauhan
*/

class CountryFromIP {

private $CountryIPDatabase = 'CountryIPDatabase.txt';
private $ip = '';

/**
* Function to validate IP ( please modify it according to your needs)
*
* @param $ip - string
*
* @return boolean
*/
public function ValdateIP($ip) {
$ipArray = explode(',',$ip);

if(count($ipArray) != 4) {
echo " ERROR: Invalid IP";
return false;
}
else {
return true;
}
}

/**
* Function to return Country name from the IPDatabase
*
* @param $ip string
*
* @return string - name of the country, false otherwise
*/
public function GetCountryName($ip) {
$this->ip = $ip;
$ip = sprintf("%u", ip2long($ip));

$csvArray = file($this->CountryIPDatabase);

for($i=0; $i $arrayOfLine = explode(',', $csvArray[$i]);
if($ip >= $arrayOfLine[0] && $ip <= $arrayOfLine[1] ) {
return $countryName = $arrayOfLine[2];
}
}
return false;
}

/**
* Function to return local path to Country's flag
*
* @param $ip - string
*
* @return string - local path to flag image
*/
public function ReturnFlagPath() {

if($countryName = trim(ucwords(strtolower($this->GetCountryName($this->ip))) )) {
$countryName = str_replace(' ','%20',$countryName);
return "flag/$countryName.gif";
}
else {
return false;
}
}

}
?>

[/PHP]