Xls\OLE\OLE::localDate2OLE()

Complexity

Conditions	2
Paths	2

Size

Total Lines	30
Code Lines	18

Duplication

Lines	0
Ratio	0 %

Importance

Changes	4
Bugs	0	Features	0

<?php
    public static function localDate2OLE($date = null)
    {
        if (!isset($date)) {
            return str_repeat("\x00", 8);
        }

        // days from 1-1-1601 until the beggining of UNIX era
        $days = 134774;
        // calculate seconds
        $bigDate = $days * 24 * 3600 +
            gmmktime(
                date("H", $date),
                date("i", $date),
                date("s", $date),
                date("m", $date),
                date("d", $date),
                date("Y", $date)
            );
        $bigDate *= 10000000;

        // factor used for separating numbers into 4 bytes parts
        $factor = pow(2, 32);

        $div = $bigDate / $factor;
        $highPart = floor($div);
        // lower 4 bytes
        $lowPart = floor(($div - $highPart) * $factor);

        return pack('V2', $lowPart, $highPart);
    }
}