Excel將日期/時間存儲爲序列化浮點時間戳,自1900年1月1日(或1904年1月1日,取決於Windows或Mac日曆)以來的天數,並記住它認爲1900是閏年。
直接從PHPExcel日期處理代碼摘自:
public static function ExcelToPHP($dateValue = 0) {
if (self::$ExcelBaseDate == self::CALENDAR_WINDOWS_1900) {
$myExcelBaseDate = 25569;
// Adjust for the spurious 29-Feb-1900 (Day 60)
if ($dateValue < 60) {
--$myExcelBaseDate;
}
} else {
$myExcelBaseDate = 24107;
}
// Perform conversion
if ($dateValue >= 1) {
$utcDays = $dateValue - $myExcelBaseDate;
$returnValue = round($utcDays * 86400);
if (($returnValue <= PHP_INT_MAX) && ($returnValue >= -PHP_INT_MAX)) {
$returnValue = (integer) $returnValue;
}
} else {
$hours = round($dateValue * 24);
$mins = round($dateValue * 1440) - round($hours * 60);
$secs = round($dateValue * 86400) - round($hours * 3600) - round($mins * 60);
$returnValue = (integer) gmmktime($hours, $mins, $secs);
}
// Return
return $returnValue;
} // function ExcelToPHP()
套自:: $ ExcelBaseDate ==作爲必要的自我:: CALENDAR_WINDOWS_1900指示Excel的基準日歷您使用的是:1900的Windows或Mac 1904
,如果你想有一個PHP DateTime對象,而不是:
public static function ExcelToPHPObject($dateValue = 0) {
$dateTime = self::ExcelToPHP($dateValue);
$days = floor($dateTime/86400);
$time = round((($dateTime/86400) - $days) * 86400);
$hours = round($time/3600);
$minutes = round($time/60) - ($hours * 60);
$seconds = round($time) - ($hours * 3600) - ($minutes * 60);
$dateObj = date_create('1-Jan-1970+'.$days.' days');
$dateObj->setTime($hours,$minutes,$seconds);
return $dateObj;
} // function ExcelToPHPObject()