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<?php
/** * PHPExcel * * Copyright (c) 2006 - 2014 PHPExcel * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * @category PHPExcel * @package PHPExcel_Shared * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL * @version 1.8.0, 2014-03-02 */
/** * PHPExcel_Shared_Date * * @category PHPExcel * @package PHPExcel_Shared * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) */ class PHPExcel_Shared_Date { /** constants */ const CALENDAR_WINDOWS_1900 = 1900; // Base date of 1st Jan 1900 = 1.0 const CALENDAR_MAC_1904 = 1904; // Base date of 2nd Jan 1904 = 1.0
/* * Names of the months of the year, indexed by shortname * Planned usage for locale settings * * @public * @var string[] */ public static $_monthNames = array( 'Jan' => 'January', 'Feb' => 'February', 'Mar' => 'March', 'Apr' => 'April', 'May' => 'May', 'Jun' => 'June', 'Jul' => 'July', 'Aug' => 'August', 'Sep' => 'September', 'Oct' => 'October', 'Nov' => 'November', 'Dec' => 'December', );
/* * Names of the months of the year, indexed by shortname * Planned usage for locale settings * * @public * @var string[] */ public static $_numberSuffixes = array( 'st', 'nd', 'rd', 'th', );
/* * Base calendar year to use for calculations * * @private * @var int */ protected static $_excelBaseDate = self::CALENDAR_WINDOWS_1900;
/** * Set the Excel calendar (Windows 1900 or Mac 1904) * * @param integer $baseDate Excel base date (1900 or 1904) * @return boolean Success or failure */ public static function setExcelCalendar($baseDate) { if (($baseDate == self::CALENDAR_WINDOWS_1900) || ($baseDate == self::CALENDAR_MAC_1904)) { self::$_excelBaseDate = $baseDate; return TRUE; } return FALSE; } // function setExcelCalendar()
/** * Return the Excel calendar (Windows 1900 or Mac 1904) * * @return integer Excel base date (1900 or 1904) */ public static function getExcelCalendar() { return self::$_excelBaseDate; } // function getExcelCalendar()
/** * Convert a date from Excel to PHP * * @param long $dateValue Excel date/time value * @param boolean $adjustToTimezone Flag indicating whether $dateValue should be treated as * a UST timestamp, or adjusted to UST * @param string $timezone The timezone for finding the adjustment from UST * @return long PHP serialized date/time */ public static function ExcelToPHP($dateValue = 0, $adjustToTimezone = FALSE, $timezone = NULL) { if (self::$_excelBaseDate == self::CALENDAR_WINDOWS_1900) { $my_excelBaseDate = 25569; // Adjust for the spurious 29-Feb-1900 (Day 60) if ($dateValue < 60) { --$my_excelBaseDate; } } else { $my_excelBaseDate = 24107; }
// Perform conversion if ($dateValue >= 1) { $utcDays = $dateValue - $my_excelBaseDate; $returnValue = round($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); }
$timezoneAdjustment = ($adjustToTimezone) ? PHPExcel_Shared_TimeZone::getTimezoneAdjustment($timezone, $returnValue) : 0;
// Return return $returnValue + $timezoneAdjustment; } // function ExcelToPHP()
/** * Convert a date from Excel to a PHP Date/Time object * * @param integer $dateValue Excel date/time value * @return integer PHP date/time object */ public static function ExcelToPHPObject($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()
/** * Convert a date from PHP to Excel * * @param mixed $dateValue PHP serialized date/time or date object * @param boolean $adjustToTimezone Flag indicating whether $dateValue should be treated as * a UST timestamp, or adjusted to UST * @param string $timezone The timezone for finding the adjustment from UST * @return mixed Excel date/time value * or boolean FALSE on failure */ public static function PHPToExcel($dateValue = 0, $adjustToTimezone = FALSE, $timezone = NULL) { $saveTimeZone = date_default_timezone_get(); date_default_timezone_set('UTC'); $retValue = FALSE; if ((is_object($dateValue)) && ($dateValue instanceof DateTime)) { $retValue = self::FormattedPHPToExcel( $dateValue->format('Y'), $dateValue->format('m'), $dateValue->format('d'), $dateValue->format('H'), $dateValue->format('i'), $dateValue->format('s') ); } elseif (is_numeric($dateValue)) { $retValue = self::FormattedPHPToExcel( date('Y',$dateValue), date('m',$dateValue), date('d',$dateValue), date('H',$dateValue), date('i',$dateValue), date('s',$dateValue) ); } date_default_timezone_set($saveTimeZone);
return $retValue; } // function PHPToExcel()
/** * FormattedPHPToExcel * * @param long $year * @param long $month * @param long $day * @param long $hours * @param long $minutes * @param long $seconds * @return long Excel date/time value */ public static function FormattedPHPToExcel($year, $month, $day, $hours=0, $minutes=0, $seconds=0) { if (self::$_excelBaseDate == self::CALENDAR_WINDOWS_1900) { // // Fudge factor for the erroneous fact that the year 1900 is treated as a Leap Year in MS Excel // This affects every date following 28th February 1900 // $excel1900isLeapYear = TRUE; if (($year == 1900) && ($month <= 2)) { $excel1900isLeapYear = FALSE; } $my_excelBaseDate = 2415020; } else { $my_excelBaseDate = 2416481; $excel1900isLeapYear = FALSE; }
// Julian base date Adjustment if ($month > 2) { $month -= 3; } else { $month += 9; --$year; }
// Calculate the Julian Date, then subtract the Excel base date (JD 2415020 = 31-Dec-1899 Giving Excel Date of 0) $century = substr($year,0,2); $decade = substr($year,2,2); $excelDate = floor((146097 * $century) / 4) + floor((1461 * $decade) / 4) + floor((153 * $month + 2) / 5) + $day + 1721119 - $my_excelBaseDate + $excel1900isLeapYear;
$excelTime = (($hours * 3600) + ($minutes * 60) + $seconds) / 86400;
return (float) $excelDate + $excelTime; } // function FormattedPHPToExcel()
/** * Is a given cell a date/time? * * @param PHPExcel_Cell $pCell * @return boolean */ public static function isDateTime(PHPExcel_Cell $pCell) { return self::isDateTimeFormat( $pCell->getWorksheet()->getStyle( $pCell->getCoordinate() )->getNumberFormat() ); } // function isDateTime()
/** * Is a given number format a date/time? * * @param PHPExcel_Style_NumberFormat $pFormat * @return boolean */ public static function isDateTimeFormat(PHPExcel_Style_NumberFormat $pFormat) { return self::isDateTimeFormatCode($pFormat->getFormatCode()); } // function isDateTimeFormat()
private static $possibleDateFormatCharacters = 'eymdHs';
/** * Is a given number format code a date/time? * * @param string $pFormatCode * @return boolean */ public static function isDateTimeFormatCode($pFormatCode = '') { if (strtolower($pFormatCode) === strtolower(PHPExcel_Style_NumberFormat::FORMAT_GENERAL)) // "General" contains an epoch letter 'e', so we trap for it explicitly here (case-insensitive check) return FALSE; if (preg_match('/[0#]E[+-]0/i', $pFormatCode)) // Scientific format return FALSE; // Switch on formatcode switch ($pFormatCode) { // Explicitly defined date formats case PHPExcel_Style_NumberFormat::FORMAT_DATE_YYYYMMDD: case PHPExcel_Style_NumberFormat::FORMAT_DATE_YYYYMMDD2: case PHPExcel_Style_NumberFormat::FORMAT_DATE_DDMMYYYY: case PHPExcel_Style_NumberFormat::FORMAT_DATE_DMYSLASH: case PHPExcel_Style_NumberFormat::FORMAT_DATE_DMYMINUS: case PHPExcel_Style_NumberFormat::FORMAT_DATE_DMMINUS: case PHPExcel_Style_NumberFormat::FORMAT_DATE_MYMINUS: case PHPExcel_Style_NumberFormat::FORMAT_DATE_DATETIME: case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME1: case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME2: case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME3: case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME4: case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME5: case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME6: case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME7: case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME8: case PHPExcel_Style_NumberFormat::FORMAT_DATE_YYYYMMDDSLASH: case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX14: case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX15: case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX16: case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX17: case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX22: return TRUE; }
// Typically number, currency or accounting (or occasionally fraction) formats if ((substr($pFormatCode,0,1) == '_') || (substr($pFormatCode,0,2) == '0 ')) { return FALSE; } // Try checking for any of the date formatting characters that don't appear within square braces if (preg_match('/(^|\])[^\[]*['.self::$possibleDateFormatCharacters.']/i',$pFormatCode)) { // We might also have a format mask containing quoted strings... // we don't want to test for any of our characters within the quoted blocks if (strpos($pFormatCode,'"') !== FALSE) { $segMatcher = FALSE; foreach(explode('"',$pFormatCode) as $subVal) { // Only test in alternate array entries (the non-quoted blocks) if (($segMatcher = !$segMatcher) && (preg_match('/(^|\])[^\[]*['.self::$possibleDateFormatCharacters.']/i',$subVal))) { return TRUE; } } return FALSE; } return TRUE; }
// No date... return FALSE; } // function isDateTimeFormatCode()
/** * Convert a date/time string to Excel time * * @param string $dateValue Examples: '2009-12-31', '2009-12-31 15:59', '2009-12-31 15:59:10' * @return float|FALSE Excel date/time serial value */ public static function stringToExcel($dateValue = '') { if (strlen($dateValue) < 2) return FALSE; if (!preg_match('/^(\d{1,4}[ \.\/\-][A-Z]{3,9}([ \.\/\-]\d{1,4})?|[A-Z]{3,9}[ \.\/\-]\d{1,4}([ \.\/\-]\d{1,4})?|\d{1,4}[ \.\/\-]\d{1,4}([ \.\/\-]\d{1,4})?)( \d{1,2}:\d{1,2}(:\d{1,2})?)?$/iu', $dateValue)) return FALSE;
$dateValueNew = PHPExcel_Calculation_DateTime::DATEVALUE($dateValue);
if ($dateValueNew === PHPExcel_Calculation_Functions::VALUE()) { return FALSE; } else { if (strpos($dateValue, ':') !== FALSE) { $timeValue = PHPExcel_Calculation_DateTime::TIMEVALUE($dateValue); if ($timeValue === PHPExcel_Calculation_Functions::VALUE()) { return FALSE; } $dateValueNew += $timeValue; } return $dateValueNew; }
}
public static function monthStringToNumber($month) { $monthIndex = 1; foreach(self::$_monthNames as $shortMonthName => $longMonthName) { if (($month === $longMonthName) || ($month === $shortMonthName)) { return $monthIndex; } ++$monthIndex; } return $month; }
public static function dayStringToNumber($day) { $strippedDayValue = (str_replace(self::$_numberSuffixes,'',$day)); if (is_numeric($strippedDayValue)) { return $strippedDayValue; } return $day; }
}
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