Description:
------------
It would be awesome to have a function in the standard library which either one working like strptime() but returning a UNIX timestamp or one converting an array like those returned by strptime() into a UNIX timestamp.

Test script:
---------------
<?php
function strptime_array_to_timestamp($array)
{
    if(!empty($array['unparsed']))
    {
        return false;
    }

    return mktime( isset($array['tm_hour']) ? $array['tm_hour']      : null, 
                   isset($array['tm_min'])  ? $array['tm_min']       : null,
                   isset($array['tm_sec'])  ? $array['tm_sec']       : null,
                   isset($array['tm_mon'])  ? 1+$array['tm_mon']     : null,
                   isset($array['tm_mday']) ? $array['tm_mday']      : null,
                   isset($array['tm_year']) ? 1900+$array['tm_year'] : null);
}