gmmktime() arguments

[Opel_Corsa]

For the following function, how would I convert args 4,5,6 of gmmktime() into integer?
[code]function _translate_date_format( $date_str, $hour, $min )
{
global $js_date_trans;

$date_split = list ( $part[0], $part[1], $part[2]) = split ('[/.-]', $date_str );

$stamp = gmmktime( $hour, $min, 0,
$part[ $js_date_trans["%m"] ],
$part[ $js_date_trans["%d"] ],
$part[ $js_date_trans["%Y"] ] );


return $stamp;
}[/code]

In our system's log file there're several errors of the form below:
[quote]27-Dec-2006 12:43:16] PHP Warning:  gmmktime() expects parameter 6 to be long, string given in xxxxx.php on line x[/quote]

The writer of the script is not accessible and we're wondering how we could patch this php file up.

Thanks in advance.

[Jessica]

to get the interget value of something use intval();
But, since PHP uses weak typing, I would think it would only give that error if there was no value at all, or a value which was not a number. intval on a string produces 0, so I don't think that will help.
Could you try adding
print_r($js_date_trans);
to make sure all the values are set?