| 1 |
<?php |
| 2 |
|
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namespace PhpOffice\PhpSpreadsheet\Shared; |
| 4 |
|
| 5 |
use DateTime; |
| 6 |
use DateTimeInterface; |
| 7 |
use DateTimeZone; |
| 8 |
use PhpOffice\PhpSpreadsheet\Calculation\DateTimeExcel; |
| 9 |
use PhpOffice\PhpSpreadsheet\Calculation\Functions; |
| 10 |
use PhpOffice\PhpSpreadsheet\Cell\Cell; |
| 11 |
use PhpOffice\PhpSpreadsheet\Exception; |
| 12 |
use PhpOffice\PhpSpreadsheet\Exception as PhpSpreadsheetException; |
| 13 |
use PhpOffice\PhpSpreadsheet\Shared\Date as SharedDate; |
| 14 |
use PhpOffice\PhpSpreadsheet\Style\NumberFormat; |
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|
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class Date |
| 17 |
{ |
| 18 |
/** constants */ |
| 19 |
const CALENDAR_WINDOWS_1900 = 1900; // Base date of 1st Jan 1900 = 1.0 |
| 20 |
const CALENDAR_MAC_1904 = 1904; // Base date of 2nd Jan 1904 = 1.0 |
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|
| 22 |
/** |
| 23 |
* Names of the months of the year, indexed by shortname |
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* Planned usage for locale settings. |
| 25 |
* |
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* @var string[] |
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*/ |
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public static $monthNames = [ |
| 29 |
'Jan' => 'January', |
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'Feb' => 'February', |
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'Mar' => 'March', |
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'Apr' => 'April', |
| 33 |
'May' => 'May', |
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'Jun' => 'June', |
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'Jul' => 'July', |
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'Aug' => 'August', |
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'Sep' => 'September', |
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'Oct' => 'October', |
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'Nov' => 'November', |
| 40 |
'Dec' => 'December', |
| 41 |
]; |
| 42 |
|
| 43 |
/** |
| 44 |
* @var string[] |
| 45 |
*/ |
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public static $numberSuffixes = [ |
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'st', |
| 48 |
'nd', |
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'rd', |
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'th', |
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]; |
| 52 |
|
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/** |
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* Base calendar year to use for calculations |
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* Value is either CALENDAR_WINDOWS_1900 (1900) or CALENDAR_MAC_1904 (1904). |
| 56 |
* |
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* @var int |
| 58 |
*/ |
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protected static $excelCalendar = self::CALENDAR_WINDOWS_1900; |
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|
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/** |
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* Default timezone to use for DateTime objects. |
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* |
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* @var null|DateTimeZone |
| 65 |
*/ |
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protected static $defaultTimeZone; |
| 67 |
|
| 68 |
/** |
| 69 |
* Set the Excel calendar (Windows 1900 or Mac 1904). |
| 70 |
* |
| 71 |
* @param int $baseYear Excel base date (1900 or 1904) |
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* |
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* @return bool Success or failure |
| 74 |
*/ |
| 75 |
public static function setExcelCalendar($baseYear) |
| 76 |
{ |
| 77 |
if ( |
| 78 |
($baseYear == self::CALENDAR_WINDOWS_1900) || |
| 79 |
($baseYear == self::CALENDAR_MAC_1904) |
| 80 |
) { |
| 81 |
self::$excelCalendar = $baseYear; |
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|
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return true; |
| 84 |
} |
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|
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return false; |
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} |
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|
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/** |
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* Return the Excel calendar (Windows 1900 or Mac 1904). |
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* |
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* @return int Excel base date (1900 or 1904) |
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*/ |
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public static function getExcelCalendar() |
| 95 |
{ |
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return self::$excelCalendar; |
| 97 |
} |
| 98 |
|
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/** |
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* Set the Default timezone to use for dates. |
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* |
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* @param null|DateTimeZone|string $timeZone The timezone to set for all Excel datetimestamp to PHP DateTime Object conversions |
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* |
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* @return bool Success or failure |
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*/ |
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public static function setDefaultTimezone($timeZone) |
| 107 |
{ |
| 108 |
try { |
| 109 |
$timeZone = self::validateTimeZone($timeZone); |
| 110 |
self::$defaultTimeZone = $timeZone; |
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$retval = true; |
| 112 |
} catch (PhpSpreadsheetException $e) { |
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$retval = false; |
| 114 |
} |
| 115 |
|
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return $retval; |
| 117 |
} |
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|
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/** |
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* Return the Default timezone, or UTC if default not set. |
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*/ |
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public static function getDefaultTimezone(): DateTimeZone |
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{ |
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return self::$defaultTimeZone ?? new DateTimeZone('UTC'); |
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} |
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|
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/** |
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* Return the Default timezone, or local timezone if default is not set. |
| 129 |
*/ |
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public static function getDefaultOrLocalTimezone(): DateTimeZone |
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{ |
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return self::$defaultTimeZone ?? new DateTimeZone(date_default_timezone_get()); |
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} |
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|
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/** |
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* Return the Default timezone even if null. |
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*/ |
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public static function getDefaultTimezoneOrNull(): ?DateTimeZone |
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{ |
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return self::$defaultTimeZone; |
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} |
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|
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/** |
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* Validate a timezone. |
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* |
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* @param null|DateTimeZone|string $timeZone The timezone to validate, either as a timezone string or object |
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* |
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* @return ?DateTimeZone The timezone as a timezone object |
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*/ |
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private static function validateTimeZone($timeZone) |
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{ |
| 152 |
if ($timeZone instanceof DateTimeZone || $timeZone === null) { |
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return $timeZone; |
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} |
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if (in_array($timeZone, DateTimeZone::listIdentifiers(DateTimeZone::ALL_WITH_BC))) { |
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return new DateTimeZone($timeZone); |
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} |
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|
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throw new PhpSpreadsheetException('Invalid timezone'); |
| 160 |
} |
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|
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/** |
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* @param mixed $value Converts a date/time in ISO-8601 standard format date string to an Excel |
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* serialized timestamp. |
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* See https://en.wikipedia.org/wiki/ISO_8601 for details of the ISO-8601 standard format. |
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* |
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* @return float|int |
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*/ |
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public static function convertIsoDate($value) |
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{ |
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if (!is_string($value)) { |
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throw new Exception('Non-string value supplied for Iso Date conversion'); |
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} |
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|
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$date = new DateTime($value); |
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$dateErrors = DateTime::getLastErrors(); |
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|
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if (is_array($dateErrors) && ($dateErrors['warning_count'] > 0 || $dateErrors['error_count'] > 0)) { |
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throw new Exception("Invalid string $value supplied for datatype Date"); |
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} |
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|
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$newValue = SharedDate::PHPToExcel($date); |
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if ($newValue === false) { |
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throw new Exception("Invalid string $value supplied for datatype Date"); |
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} |
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|
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if (preg_match('/^\s*\d?\d:\d\d(:\d\d([.]\d+)?)?\s*(am|pm)?\s*$/i', $value) == 1) { |
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$newValue = fmod($newValue, 1.0); |
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} |
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|
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return $newValue; |
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} |
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|
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/** |
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* Convert a MS serialized datetime value from Excel to a PHP Date/Time object. |
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* |
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* @param float|int $excelTimestamp MS Excel serialized date/time value |
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* @param null|DateTimeZone|string $timeZone The timezone to assume for the Excel timestamp, |
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* if you don't want to treat it as a UTC value |
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* Use the default (UTC) unless you absolutely need a conversion |
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* |
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* @return DateTime PHP date/time object |
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*/ |
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public static function excelToDateTimeObject($excelTimestamp, $timeZone = null) |
| 205 |
{ |
| 206 |
$timeZone = ($timeZone === null) ? self::getDefaultTimezone() : self::validateTimeZone($timeZone); |
| 207 |
if (Functions::getCompatibilityMode() == Functions::COMPATIBILITY_EXCEL) { |
| 208 |
if ($excelTimestamp < 1 && self::$excelCalendar === self::CALENDAR_WINDOWS_1900) { |
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// Unix timestamp base date |
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$baseDate = new DateTime('1970-01-01', $timeZone); |
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} else { |
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// MS Excel calendar base dates |
| 213 |
if (self::$excelCalendar == self::CALENDAR_WINDOWS_1900) { |
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// Allow adjustment for 1900 Leap Year in MS Excel |
| 215 |
$baseDate = ($excelTimestamp < 60) ? new DateTime('1899-12-31', $timeZone) : new DateTime('1899-12-30', $timeZone); |
| 216 |
} else { |
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$baseDate = new DateTime('1904-01-01', $timeZone); |
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} |
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} |
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} else { |
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$baseDate = new DateTime('1899-12-30', $timeZone); |
| 222 |
} |
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|
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$days = floor($excelTimestamp); |
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$partDay = $excelTimestamp - $days; |
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$hours = floor($partDay * 24); |
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$partDay = $partDay * 24 - $hours; |
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$minutes = floor($partDay * 60); |
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$partDay = $partDay * 60 - $minutes; |
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$seconds = round($partDay * 60); |
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|
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if ($days >= 0) { |
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$days = '+' . $days; |
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} |
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$interval = $days . ' days'; |
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|
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return $baseDate->modify($interval) |
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->setTime((int) $hours, (int) $minutes, (int) $seconds); |
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} |
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|
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/** |
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* Convert a MS serialized datetime value from Excel to a unix timestamp. |
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* The use of Unix timestamps, and therefore this function, is discouraged. |
| 244 |
* They are not Y2038-safe on a 32-bit system, and have no timezone info. |
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* |
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* @param float|int $excelTimestamp MS Excel serialized date/time value |
| 247 |
* @param null|DateTimeZone|string $timeZone The timezone to assume for the Excel timestamp, |
| 248 |
* if you don't want to treat it as a UTC value |
| 249 |
* Use the default (UTC) unless you absolutely need a conversion |
| 250 |
* |
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* @return int Unix timetamp for this date/time |
| 252 |
*/ |
| 253 |
public static function excelToTimestamp($excelTimestamp, $timeZone = null) |
| 254 |
{ |
| 255 |
return (int) self::excelToDateTimeObject($excelTimestamp, $timeZone) |
| 256 |
->format('U'); |
| 257 |
} |
| 258 |
|
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/** |
| 260 |
* Convert a date from PHP to an MS Excel serialized date/time value. |
| 261 |
* |
| 262 |
* @param mixed $dateValue PHP DateTime object or a string - Unix timestamp is also permitted, but discouraged; |
| 263 |
* not Y2038-safe on a 32-bit system, and no timezone info |
| 264 |
* |
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* @return false|float Excel date/time value |
| 266 |
* or boolean FALSE on failure |
| 267 |
*/ |
| 268 |
public static function PHPToExcel($dateValue) |
| 269 |
{ |
| 270 |
if ((is_object($dateValue)) && ($dateValue instanceof DateTimeInterface)) { |
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return self::dateTimeToExcel($dateValue); |
| 272 |
} elseif (is_numeric($dateValue)) { |
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return self::timestampToExcel($dateValue); |
| 274 |
} elseif (is_string($dateValue)) { |
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return self::stringToExcel($dateValue); |
| 276 |
} |
| 277 |
|
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return false; |
| 279 |
} |
| 280 |
|
| 281 |
/** |
| 282 |
* Convert a PHP DateTime object to an MS Excel serialized date/time value. |
| 283 |
* |
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* @param DateTimeInterface $dateValue PHP DateTime object |
| 285 |
* |
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* @return float MS Excel serialized date/time value |
| 287 |
*/ |
| 288 |
public static function dateTimeToExcel(DateTimeInterface $dateValue) |
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{ |
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return self::formattedPHPToExcel( |
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(int) $dateValue->format('Y'), |
| 292 |
(int) $dateValue->format('m'), |
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(int) $dateValue->format('d'), |
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(int) $dateValue->format('H'), |
| 295 |
(int) $dateValue->format('i'), |
| 296 |
(int) $dateValue->format('s') |
| 297 |
); |
| 298 |
} |
| 299 |
|
| 300 |
/** |
| 301 |
* Convert a Unix timestamp to an MS Excel serialized date/time value. |
| 302 |
* The use of Unix timestamps, and therefore this function, is discouraged. |
| 303 |
* They are not Y2038-safe on a 32-bit system, and have no timezone info. |
| 304 |
* |
| 305 |
* @param float|int|string $unixTimestamp Unix Timestamp |
| 306 |
* |
| 307 |
* @return false|float MS Excel serialized date/time value |
| 308 |
*/ |
| 309 |
public static function timestampToExcel($unixTimestamp) |
| 310 |
{ |
| 311 |
if (!is_numeric($unixTimestamp)) { |
| 312 |
return false; |
| 313 |
} |
| 314 |
|
| 315 |
return self::dateTimeToExcel(new DateTime('@' . $unixTimestamp)); |
| 316 |
} |
| 317 |
|
| 318 |
/** |
| 319 |
* formattedPHPToExcel. |
| 320 |
* |
| 321 |
* @param int $year |
| 322 |
* @param int $month |
| 323 |
* @param int $day |
| 324 |
* @param int $hours |
| 325 |
* @param int $minutes |
| 326 |
* @param int $seconds |
| 327 |
* |
| 328 |
* @return float Excel date/time value |
| 329 |
*/ |
| 330 |
public static function formattedPHPToExcel($year, $month, $day, $hours = 0, $minutes = 0, $seconds = 0) |
| 331 |
{ |
| 332 |
if (self::$excelCalendar == self::CALENDAR_WINDOWS_1900) { |
| 333 |
// |
| 334 |
// Fudge factor for the erroneous fact that the year 1900 is treated as a Leap Year in MS Excel |
| 335 |
// This affects every date following 28th February 1900 |
| 336 |
// |
| 337 |
$excel1900isLeapYear = true; |
| 338 |
if (($year == 1900) && ($month <= 2)) { |
| 339 |
$excel1900isLeapYear = false; |
| 340 |
} |
| 341 |
$myexcelBaseDate = 2415020; |
| 342 |
} else { |
| 343 |
$myexcelBaseDate = 2416481; |
| 344 |
$excel1900isLeapYear = false; |
| 345 |
} |
| 346 |
|
| 347 |
// Julian base date Adjustment |
| 348 |
if ($month > 2) { |
| 349 |
$month -= 3; |
| 350 |
} else { |
| 351 |
$month += 9; |
| 352 |
--$year; |
| 353 |
} |
| 354 |
|
| 355 |
// Calculate the Julian Date, then subtract the Excel base date (JD 2415020 = 31-Dec-1899 Giving Excel Date of 0) |
| 356 |
$century = (int) substr((string) $year, 0, 2); |
| 357 |
$decade = (int) substr((string) $year, 2, 2); |
| 358 |
$excelDate = floor((146097 * $century) / 4) + floor((1461 * $decade) / 4) + floor((153 * $month + 2) / 5) + $day + 1721119 - $myexcelBaseDate + $excel1900isLeapYear; |
| 359 |
|
| 360 |
$excelTime = (($hours * 3600) + ($minutes * 60) + $seconds) / 86400; |
| 361 |
|
| 362 |
return (float) $excelDate + $excelTime; |
| 363 |
} |
| 364 |
|
| 365 |
/** |
| 366 |
* Is a given cell a date/time? |
| 367 |
* |
| 368 |
* @param mixed $value |
| 369 |
* |
| 370 |
* @return bool |
| 371 |
*/ |
| 372 |
public static function isDateTime(Cell $cell, $value = null, bool $dateWithoutTimeOkay = true) |
| 373 |
{ |
| 374 |
$result = false; |
| 375 |
$worksheet = $cell->getWorksheetOrNull(); |
| 376 |
$spreadsheet = ($worksheet === null) ? null : $worksheet->getParent(); |
| 377 |
if ($worksheet !== null && $spreadsheet !== null) { |
| 378 |
$index = $spreadsheet->getActiveSheetIndex(); |
| 379 |
$selected = $worksheet->getSelectedCells(); |
| 380 |
|
| 381 |
try { |
| 382 |
$result = is_numeric($value ?? $cell->getCalculatedValue()) && |
| 383 |
self::isDateTimeFormat( |
| 384 |
$worksheet->getStyle( |
| 385 |
$cell->getCoordinate() |
| 386 |
)->getNumberFormat(), |
| 387 |
$dateWithoutTimeOkay |
| 388 |
); |
| 389 |
} catch (Exception $e) { |
| 390 |
// Result is already false, so no need to actually do anything here |
| 391 |
} |
| 392 |
$worksheet->setSelectedCells($selected); |
| 393 |
$spreadsheet->setActiveSheetIndex($index); |
| 394 |
} |
| 395 |
|
| 396 |
return $result; |
| 397 |
} |
| 398 |
|
| 399 |
/** |
| 400 |
* Is a given NumberFormat code a date/time format code? |
| 401 |
* |
| 402 |
* @return bool |
| 403 |
*/ |
| 404 |
public static function isDateTimeFormat(NumberFormat $excelFormatCode, bool $dateWithoutTimeOkay = true) |
| 405 |
{ |
| 406 |
return self::isDateTimeFormatCode((string) $excelFormatCode->getFormatCode(), $dateWithoutTimeOkay); |
| 407 |
} |
| 408 |
|
| 409 |
private const POSSIBLE_DATETIME_FORMAT_CHARACTERS = 'eymdHs'; |
| 410 |
private const POSSIBLE_TIME_FORMAT_CHARACTERS = 'Hs'; // note - no 'm' due to ambiguity |
| 411 |
|
| 412 |
/** |
| 413 |
* Is a given number format code a date/time? |
| 414 |
* |
| 415 |
* @param string $excelFormatCode |
| 416 |
* |
| 417 |
* @return bool |
| 418 |
*/ |
| 419 |
public static function isDateTimeFormatCode($excelFormatCode, bool $dateWithoutTimeOkay = true) |
| 420 |
{ |
| 421 |
if (strtolower($excelFormatCode) === strtolower(NumberFormat::FORMAT_GENERAL)) { |
| 422 |
// "General" contains an epoch letter 'e', so we trap for it explicitly here (case-insensitive check) |
| 423 |
return false; |
| 424 |
} |
| 425 |
if (preg_match('/[0#]E[+-]0/i', $excelFormatCode)) { |
| 426 |
// Scientific format |
| 427 |
return false; |
| 428 |
} |
| 429 |
|
| 430 |
// Switch on formatcode |
| 431 |
if (in_array($excelFormatCode, NumberFormat::DATE_TIME_OR_DATETIME_ARRAY, true)) { |
| 432 |
return $dateWithoutTimeOkay || in_array($excelFormatCode, NumberFormat::TIME_OR_DATETIME_ARRAY); |
| 433 |
} |
| 434 |
|
| 435 |
// Typically number, currency or accounting (or occasionally fraction) formats |
| 436 |
if ((substr($excelFormatCode, 0, 1) == '_') || (substr($excelFormatCode, 0, 2) == '0 ')) { |
| 437 |
return false; |
| 438 |
} |
| 439 |
// Some "special formats" provided in German Excel versions were detected as date time value, |
| 440 |
// so filter them out here - "\C\H\-00000" (Switzerland) and "\D-00000" (Germany). |
| 441 |
if (\strpos($excelFormatCode, '-00000') !== false) { |
| 442 |
return false; |
| 443 |
} |
| 444 |
$possibleFormatCharacters = $dateWithoutTimeOkay ? self::POSSIBLE_DATETIME_FORMAT_CHARACTERS : self::POSSIBLE_TIME_FORMAT_CHARACTERS; |
| 445 |
// Try checking for any of the date formatting characters that don't appear within square braces |
| 446 |
if (preg_match('/(^|\])[^\[]*[' . $possibleFormatCharacters . ']/i', $excelFormatCode)) { |
| 447 |
// We might also have a format mask containing quoted strings... |
| 448 |
// we don't want to test for any of our characters within the quoted blocks |
| 449 |
if (strpos($excelFormatCode, '"') !== false) { |
| 450 |
$segMatcher = false; |
| 451 |
foreach (explode('"', $excelFormatCode) as $subVal) { |
| 452 |
// Only test in alternate array entries (the non-quoted blocks) |
| 453 |
$segMatcher = $segMatcher === false; |
| 454 |
if ( |
| 455 |
$segMatcher && |
| 456 |
(preg_match('/(^|\])[^\[]*[' . $possibleFormatCharacters . ']/i', $subVal)) |
| 457 |
) { |
| 458 |
return true; |
| 459 |
} |
| 460 |
} |
| 461 |
|
| 462 |
return false; |
| 463 |
} |
| 464 |
|
| 465 |
return true; |
| 466 |
} |
| 467 |
|
| 468 |
// No date... |
| 469 |
return false; |
| 470 |
} |
| 471 |
|
| 472 |
/** |
| 473 |
* Convert a date/time string to Excel time. |
| 474 |
* |
| 475 |
* @param string $dateValue Examples: '2009-12-31', '2009-12-31 15:59', '2009-12-31 15:59:10' |
| 476 |
* |
| 477 |
* @return false|float Excel date/time serial value |
| 478 |
*/ |
| 479 |
public static function stringToExcel($dateValue) |
| 480 |
{ |
| 481 |
if (strlen($dateValue) < 2) { |
| 482 |
return false; |
| 483 |
} |
| 484 |
if (!preg_match('/^(\d{1,4}[ \.\/\-][A-Z]{3,9}([ \.\/\-]\d{1,4})?|[A-Z]{3,9}[ \.\/\-]\d{1,4}([ \.\/\-]\d{1,4})?|\d{1,4}[ \.\/\-]\d{1,4}([ \.\/\-]\d{1,4})?)( \d{1,2}:\d{1,2}(:\d{1,2})?)?$/iu', $dateValue)) { |
| 485 |
return false; |
| 486 |
} |
| 487 |
|
| 488 |
$dateValueNew = DateTimeExcel\DateValue::fromString($dateValue); |
| 489 |
|
| 490 |
if (!is_float($dateValueNew)) { |
| 491 |
return false; |
| 492 |
} |
| 493 |
|
| 494 |
if (strpos($dateValue, ':') !== false) { |
| 495 |
$timeValue = DateTimeExcel\TimeValue::fromString($dateValue); |
| 496 |
if (!is_float($timeValue)) { |
| 497 |
return false; |
| 498 |
} |
| 499 |
$dateValueNew += $timeValue; |
| 500 |
} |
| 501 |
|
| 502 |
return $dateValueNew; |
| 503 |
} |
| 504 |
|
| 505 |
/** |
| 506 |
* Converts a month name (either a long or a short name) to a month number. |
| 507 |
* |
| 508 |
* @param string $monthName Month name or abbreviation |
| 509 |
* |
| 510 |
* @return int|string Month number (1 - 12), or the original string argument if it isn't a valid month name |
| 511 |
*/ |
| 512 |
public static function monthStringToNumber($monthName) |
| 513 |
{ |
| 514 |
$monthIndex = 1; |
| 515 |
foreach (self::$monthNames as $shortMonthName => $longMonthName) { |
| 516 |
if (($monthName === $longMonthName) || ($monthName === $shortMonthName)) { |
| 517 |
return $monthIndex; |
| 518 |
} |
| 519 |
++$monthIndex; |
| 520 |
} |
| 521 |
|
| 522 |
return $monthName; |
| 523 |
} |
| 524 |
|
| 525 |
/** |
| 526 |
* Strips an ordinal from a numeric value. |
| 527 |
* |
| 528 |
* @param string $day Day number with an ordinal |
| 529 |
* |
| 530 |
* @return int|string The integer value with any ordinal stripped, or the original string argument if it isn't a valid numeric |
| 531 |
*/ |
| 532 |
public static function dayStringToNumber($day) |
| 533 |
{ |
| 534 |
$strippedDayValue = (str_replace(self::$numberSuffixes, '', $day)); |
| 535 |
if (is_numeric($strippedDayValue)) { |
| 536 |
return (int) $strippedDayValue; |
| 537 |
} |
| 538 |
|
| 539 |
return $day; |
| 540 |
} |
| 541 |
|
| 542 |
public static function dateTimeFromTimestamp(string $date, ?DateTimeZone $timeZone = null): DateTime |
| 543 |
{ |
| 544 |
$dtobj = DateTime::createFromFormat('U', $date) ?: new DateTime(); |
| 545 |
$dtobj->setTimeZone($timeZone ?? self::getDefaultOrLocalTimezone()); |
| 546 |
|
| 547 |
return $dtobj; |
| 548 |
} |
| 549 |
|
| 550 |
public static function formattedDateTimeFromTimestamp(string $date, string $format, ?DateTimeZone $timeZone = null): string |
| 551 |
{ |
| 552 |
$dtobj = self::dateTimeFromTimestamp($date, $timeZone); |
| 553 |
|
| 554 |
return $dtobj->format($format); |
| 555 |
} |
| 556 |
} |
| 557 |
|
