home *** CD-ROM | disk | FTP | other *** search
- <?php
- /* vim: set expandtab tabstop=4 shiftwidth=4: */
- // +----------------------------------------------------------------------+
- // | PHP Version 4 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2003 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.02 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Authors: Baba Buehler <baba@babaz.com> |
- // | Pierre-Alain Joye <pajoye@php.net> |
- // +----------------------------------------------------------------------+
- //
- // $Id: Date.php,v 1.28 2004/05/16 13:11:07 pajoye Exp $
-
- /**@#+
- * Include supporting classes
- */
- require_once 'Date/TimeZone.php';
- require_once 'Date/Calc.php';
- require_once 'Date/Span.php';
- /**@#-*/
-
- /**@#+
- * Output formats. Pass this to getDate().
- */
- /**
- * "YYYY-MM-DD HH:MM:SS"
- */
- define('DATE_FORMAT_ISO', 1);
- /**
- * "YYYYMMSSTHHMMSS(Z|(+/-)HHMM)?"
- */
- define('DATE_FORMAT_ISO_BASIC', 2);
- /**
- * "YYYY-MM-SSTHH:MM:SS(Z|(+/-)HH:MM)?"
- */
- define('DATE_FORMAT_ISO_EXTENDED', 3);
- /**
- * "YYYY-MM-SSTHH:MM:SS(.S*)?(Z|(+/-)HH:MM)?"
- */
- define('DATE_FORMAT_ISO_EXTENDED_MICROTIME', 6);
- /**
- * "YYYYMMDDHHMMSS"
- */
- define('DATE_FORMAT_TIMESTAMP', 4);
- /**
- * long int, seconds since the unix epoch
- */
- define('DATE_FORMAT_UNIXTIME', 5);
- /**@#-*/
-
- /**
- * Generic date handling class for PEAR.
- *
- * Generic date handling class for PEAR. Attempts to be time zone aware
- * through the Date::TimeZone class. Supports several operations from
- * Date::Calc on Date objects.
- *
- * @author Baba Buehler <baba@babaz.com>
- * @package Date
- * @access public
- */
- class Date
- {
- /**
- * the year
- * @var int
- */
- var $year;
- /**
- * the month
- * @var int
- */
- var $month;
- /**
- * the day
- * @var int
- */
- var $day;
- /**
- * the hour
- * @var int
- */
- var $hour;
- /**
- * the minute
- * @var int
- */
- var $minute;
- /**
- * the second
- * @var int
- */
- var $second;
- /**
- * the parts of a second
- * @var float
- */
- var $partsecond;
- /**
- * timezone for this date
- * @var object Date_TimeZone
- */
- var $tz;
-
-
- /**
- * Constructor
- *
- * Creates a new Date Object initialized to the current date/time in the
- * system-default timezone by default. A date optionally
- * passed in may be in the ISO 8601, TIMESTAMP or UNIXTIME format,
- * or another Date object. If no date is passed, the current date/time
- * is used.
- *
- * @access public
- * @see setDate()
- * @param mixed $date optional - date/time to initialize
- * @return object Date the new Date object
- */
- function Date($date = null)
- {
- $this->tz = Date_TimeZone::getDefault();
- if (is_null($date)) {
- $this->setDate(date("Y-m-d H:i:s"));
- } elseif (is_a($date, 'Date')) {
- $this->copy($date);
- } else {
- $this->setDate($date);
- }
- }
-
- /**
- * Set the fields of a Date object based on the input date and format
- *
- * Set the fields of a Date object based on the input date and format,
- * which is specified by the DATE_FORMAT_* constants.
- *
- * @access public
- * @param string $date input date
- * @param int $format Optional format constant (DATE_FORMAT_*) of the input date.
- * This parameter isn't really needed anymore, but you could
- * use it to force DATE_FORMAT_UNIXTIME.
- */
- function setDate($date, $format = DATE_FORMAT_ISO)
- {
-
- if (
- preg_match('/^(\d{4})-?(\d{2})-?(\d{2})([T\s]?(\d{2}):?(\d{2}):?(\d{2})(\.\d+)?(Z|[\+\-]\d{2}:?\d{2})?)?$/i', $date, $regs)
- && $format != DATE_FORMAT_UNIXTIME) {
- // DATE_FORMAT_ISO, ISO_BASIC, ISO_EXTENDED, and TIMESTAMP
- // These formats are extremely close to each other. This regex
- // is very loose and accepts almost any butchered format you could
- // throw at it. e.g. 2003-10-07 19:45:15 and 2003-10071945:15
- // are the same thing in the eyes of this regex, even though the
- // latter is not a valid ISO 8601 date.
- $this->year = $regs[1];
- $this->month = $regs[2];
- $this->day = $regs[3];
- $this->hour = isset($regs[5])?$regs[5]:0;
- $this->minute = isset($regs[6])?$regs[6]:0;
- $this->second = isset($regs[7])?$regs[7]:0;
- $this->partsecond = isset($regs[8])?(float)$regs[8]:(float)0;
-
- // if an offset is defined, convert time to UTC
- // Date currently can't set a timezone only by offset,
- // so it has to store it as UTC
- if (isset($regs[9])) {
- $this->toUTCbyOffset($regs[9]);
- }
- } elseif (is_numeric($date)) {
- // UNIXTIME
- $this->setDate(date("Y-m-d H:i:s", $date));
- } else {
- // unknown format
- $this->year = 0;
- $this->month = 1;
- $this->day = 1;
- $this->hour = 0;
- $this->minute = 0;
- $this->second = 0;
- $this->partsecond = (float)0;
- }
- }
-
- /**
- * Get a string (or other) representation of this date
- *
- * Get a string (or other) representation of this date in the
- * format specified by the DATE_FORMAT_* constants.
- *
- * @access public
- * @param int $format format constant (DATE_FORMAT_*) of the output date
- * @return string the date in the requested format
- */
- function getDate($format = DATE_FORMAT_ISO)
- {
- switch ($format) {
- case DATE_FORMAT_ISO:
- return $this->format("%Y-%m-%d %T");
- break;
- case DATE_FORMAT_ISO_BASIC:
- $format = "%Y%m%dT%H%M%S";
- if ($this->tz->getID() == 'UTC') {
- $format .= "Z";
- }
- return $this->format($format);
- break;
- case DATE_FORMAT_ISO_EXTENDED:
- $format = "%Y-%m-%dT%H:%M:%S";
- if ($this->tz->getID() == 'UTC') {
- $format .= "Z";
- }
- return $this->format($format);
- break;
- case DATE_FORMAT_ISO_EXTENDED_MICROTIME:
- $format = "%Y-%m-%dT%H:%M:%s";
- if ($this->tz->getID() == 'UTC') {
- $format .= "Z";
- }
- return $this->format($format);
- break;
- case DATE_FORMAT_TIMESTAMP:
- return $this->format("%Y%m%d%H%M%S");
- break;
- case DATE_FORMAT_UNIXTIME:
- return mktime($this->hour, $this->minute, $this->second, $this->month, $this->day, $this->year);
- break;
- }
- }
-
- /**
- * Copy values from another Date object
- *
- * Makes this Date a copy of another Date object.
- *
- * @access public
- * @param object Date $date Date to copy from
- */
- function copy($date)
- {
- $this->year = $date->year;
- $this->month = $date->month;
- $this->day = $date->day;
- $this->hour = $date->hour;
- $this->minute = $date->minute;
- $this->second = $date->second;
- $this->tz = $date->tz;
- }
-
- /**
- * Date pretty printing, similar to strftime()
- *
- * Formats the date in the given format, much like
- * strftime(). Most strftime() options are supported.<br><br>
- *
- * formatting options:<br><br>
- *
- * <code>%a </code> abbreviated weekday name (Sun, Mon, Tue) <br>
- * <code>%A </code> full weekday name (Sunday, Monday, Tuesday) <br>
- * <code>%b </code> abbreviated month name (Jan, Feb, Mar) <br>
- * <code>%B </code> full month name (January, February, March) <br>
- * <code>%C </code> century number (the year divided by 100 and truncated to an integer, range 00 to 99) <br>
- * <code>%d </code> day of month (range 00 to 31) <br>
- * <code>%D </code> same as "%m/%d/%y" <br>
- * <code>%e </code> day of month, single digit (range 0 to 31) <br>
- * <code>%E </code> number of days since unspecified epoch (integer, Date_Calc::dateToDays()) <br>
- * <code>%H </code> hour as decimal number (00 to 23) <br>
- * <code>%I </code> hour as decimal number on 12-hour clock (01 to 12) <br>
- * <code>%j </code> day of year (range 001 to 366) <br>
- * <code>%m </code> month as decimal number (range 01 to 12) <br>
- * <code>%M </code> minute as a decimal number (00 to 59) <br>
- * <code>%n </code> newline character (\n) <br>
- * <code>%O </code> dst-corrected timezone offset expressed as "+/-HH:MM" <br>
- * <code>%o </code> raw timezone offset expressed as "+/-HH:MM" <br>
- * <code>%p </code> either 'am' or 'pm' depending on the time <br>
- * <code>%P </code> either 'AM' or 'PM' depending on the time <br>
- * <code>%r </code> time in am/pm notation, same as "%I:%M:%S %p" <br>
- * <code>%R </code> time in 24-hour notation, same as "%H:%M" <br>
- * <code>%s </code> seconds including the decimal representation smaller than one second <br>
- * <code>%S </code> seconds as a decimal number (00 to 59) <br>
- * <code>%t </code> tab character (\t) <br>
- * <code>%T </code> current time, same as "%H:%M:%S" <br>
- * <code>%w </code> weekday as decimal (0 = Sunday) <br>
- * <code>%U </code> week number of current year, first sunday as first week <br>
- * <code>%y </code> year as decimal (range 00 to 99) <br>
- * <code>%Y </code> year as decimal including century (range 0000 to 9999) <br>
- * <code>%% </code> literal '%' <br>
- * <br>
- *
- * @access public
- * @param string format the format string for returned date/time
- * @return string date/time in given format
- */
- function format($format)
- {
- $output = "";
-
- for($strpos = 0; $strpos < strlen($format); $strpos++) {
- $char = substr($format,$strpos,1);
- if ($char == "%") {
- $nextchar = substr($format,$strpos + 1,1);
- switch ($nextchar) {
- case "a":
- $output .= Date_Calc::getWeekdayAbbrname($this->day,$this->month,$this->year);
- break;
- case "A":
- $output .= Date_Calc::getWeekdayFullname($this->day,$this->month,$this->year);
- break;
- case "b":
- $output .= Date_Calc::getMonthAbbrname($this->month);
- break;
- case "B":
- $output .= Date_Calc::getMonthFullname($this->month);
- break;
- case "C":
- $output .= sprintf("%02d",intval($this->year/100));
- break;
- case "d":
- $output .= sprintf("%02d",$this->day);
- break;
- case "D":
- $output .= sprintf("%02d/%02d/%02d",$this->month,$this->day,$this->year);
- break;
- case "e":
- $output .= $this->day * 1; // get rid of leading zero
- break;
- case "E":
- $output .= Date_Calc::dateToDays($this->day,$this->month,$this->year);
- break;
- case "H":
- $output .= sprintf("%02d", $this->hour);
- break;
- case "I":
- $hour = ($this->hour + 1) > 12 ? $this->hour - 12 : $this->hour;
- $output .= sprintf("%02d", $hour==0 ? 12 : $hour);
- break;
- case "j":
- $output .= Date_Calc::julianDate($this->day,$this->month,$this->year);
- break;
- case "m":
- $output .= sprintf("%02d",$this->month);
- break;
- case "M":
- $output .= sprintf("%02d",$this->minute);
- break;
- case "n":
- $output .= "\n";
- break;
- case "O":
- $offms = $this->tz->getOffset($this);
- $direction = $offms >= 0 ? "+" : "-";
- $offmins = abs($offms) / 1000 / 60;
- $hours = $offmins / 60;
- $minutes = $offmins % 60;
- $output .= sprintf("%s%02d:%02d", $direction, $hours, $minutes);
- break;
- case "o":
- $offms = $this->tz->getRawOffset($this);
- $direction = $offms >= 0 ? "+" : "-";
- $offmins = abs($offms) / 1000 / 60;
- $hours = $offmins / 60;
- $minutes = $offmins % 60;
- $output .= sprintf("%s%02d:%02d", $direction, $hours, $minutes);
- break;
- case "p":
- $output .= $this->hour >= 12 ? "pm" : "am";
- break;
- case "P":
- $output .= $this->hour >= 12 ? "PM" : "AM";
- break;
- case "r":
- $hour = ($this->hour + 1) > 12 ? $this->hour - 12 : $this->hour;
- $output .= sprintf("%02d:%02d:%02d %s", $hour==0 ? 12 : $hour, $this->minute, $this->second, $this->hour >= 12 ? "PM" : "AM");
- break;
- case "R":
- $output .= sprintf("%02d:%02d", $this->hour, $this->minute);
- break;
- case "s":
- $output .= sprintf("%02f", (float)((float)$this->second + $this->partsecond));
- break;
- case "S":
- $output .= sprintf("%02d", $this->second);
- break;
- case "t":
- $output .= "\t";
- break;
- case "T":
- $output .= sprintf("%02d:%02d:%02d", $this->hour, $this->minute, $this->second);
- break;
- case "w":
- $output .= Date_Calc::dayOfWeek($this->day,$this->month,$this->year);
- break;
- case "U":
- $output .= Date_Calc::weekOfYear($this->day,$this->month,$this->year);
- break;
- case "y":
- $output .= substr($this->year,2,2);
- break;
- case "Y":
- $output .= $this->year;
- break;
- case "Z":
- $output .= $this->tz->inDaylightTime($this) ? $this->tz->getDSTShortName() : $this->tz->getShortName();
- break;
- case "%":
- $output .= "%";
- break;
- default:
- $output .= $char.$nextchar;
- }
- $strpos++;
- } else {
- $output .= $char;
- }
- }
- return $output;
-
- }
-
- /**
- * Get this date/time in Unix time() format
- *
- * Get a representation of this date in Unix time() format. This may only be
- * valid for dates from 1970 to ~2038.
- *
- * @access public
- * @return int number of seconds since the unix epoch
- */
- function getTime()
- {
- return $this->getDate(DATE_FORMAT_UNIXTIME);
- }
-
- /**
- * Sets the time zone of this Date
- *
- * Sets the time zone of this date with the given
- * Date_TimeZone object. Does not alter the date/time,
- * only assigns a new time zone. For conversion, use
- * convertTZ().
- *
- * @access public
- * @param object Date_TimeZone $tz the Date_TimeZone object to use, if called
- * with a paramater that is not a Date_TimeZone object, will fall through to
- * setTZbyID().
- */
- function setTZ($tz)
- {
- if(is_a($tz, 'Date_Timezone')) {
- $this->tz = $tz;
- } else {
- $this->setTZbyID($tz);
- }
- }
-
- /**
- * Sets the time zone of this date with the given time zone id
- *
- * Sets the time zone of this date with the given
- * time zone id, or to the system default if the
- * given id is invalid. Does not alter the date/time,
- * only assigns a new time zone. For conversion, use
- * convertTZ().
- *
- * @access public
- * @param string id a time zone id
- */
- function setTZbyID($id)
- {
- if (Date_TimeZone::isValidID($id)) {
- $this->tz = new Date_TimeZone($id);
- } else {
- $this->tz = Date_TimeZone::getDefault();
- }
- }
-
- /**
- * Tests if this date/time is in DST
- *
- * Returns true if daylight savings time is in effect for
- * this date in this date's time zone. See Date_TimeZone::inDaylightTime()
- * for compatability information.
- *
- * @access public
- * @return boolean true if DST is in effect for this date
- */
- function inDaylightTime()
- {
- return $this->tz->inDaylightTime($this);
- }
-
- /**
- * Converts this date to UTC and sets this date's timezone to UTC
- *
- * Converts this date to UTC and sets this date's timezone to UTC
- *
- * @access public
- */
- function toUTC()
- {
- if ($this->tz->getOffset($this) > 0) {
- $this->subtractSeconds(intval($this->tz->getOffset($this) / 1000));
- } else {
- $this->addSeconds(intval(abs($this->tz->getOffset($this)) / 1000));
- }
- $this->tz = new Date_TimeZone('UTC');
- }
-
- /**
- * Converts this date to a new time zone
- *
- * Converts this date to a new time zone.
- * WARNING: This may not work correctly if your system does not allow
- * putenv() or if localtime() does not work in your environment. See
- * Date::TimeZone::inDaylightTime() for more information.
- *
- * @access public
- * @param object Date_TimeZone $tz the Date::TimeZone object for the conversion time zone
- */
- function convertTZ($tz)
- {
- // convert to UTC
- if ($this->tz->getOffset($this) > 0) {
- $this->subtractSeconds(intval(abs($this->tz->getOffset($this)) / 1000));
- } else {
- $this->addSeconds(intval(abs($this->tz->getOffset($this)) / 1000));
- }
- // convert UTC to new timezone
- if ($tz->getOffset($this) > 0) {
- $this->addSeconds(intval(abs($tz->getOffset($this)) / 1000));
- } else {
- $this->subtractSeconds(intval(abs($tz->getOffset($this)) / 1000));
- }
- $this->tz = $tz;
- }
-
- /**
- * Converts this date to a new time zone, given a valid time zone ID
- *
- * Converts this date to a new time zone, given a valid time zone ID
- * WARNING: This may not work correctly if your system does not allow
- * putenv() or if localtime() does not work in your environment. See
- * Date::TimeZone::inDaylightTime() for more information.
- *
- * @access public
- * @param string id a time zone id
- */
- function convertTZbyID($id)
- {
- if (Date_TimeZone::isValidID($id)) {
- $tz = new Date_TimeZone($id);
- } else {
- $tz = Date_TimeZone::getDefault();
- }
- $this->convertTZ($tz);
- }
-
- function toUTCbyOffset($offset)
- {
- if ($offset == "Z" || $offset == "+00:00" || $offset == "+0000") {
- $this->toUTC();
- return true;
- }
-
- if (preg_match('/([\+\-])(\d{2}):?(\d{2})/', $offset, $regs)) {
- // convert offset to seconds
- $hours = (int) isset($regs[2])?$regs[2]:0;
- $mins = (int) isset($regs[3])?$regs[3]:0;
- $offset = ($hours * 3600) + ($mins * 60);
-
- if (isset($regs[1]) && $regs[1] == "-") {
- $offset *= -1;
- }
-
- if ($offset > 0) {
- $this->subtractSeconds(intval($offset));
- } else {
- $this->addSeconds(intval(abs($offset)));
- }
-
- $this->tz = new Date_TimeZone('UTC');
- return true;
- }
-
- return false;
- }
-
- /**
- * Adds a given number of seconds to the date
- *
- * Adds a given number of seconds to the date
- *
- * @access public
- * @param int $sec the number of seconds to add
- */
- function addSeconds($sec)
- {
- $this->addSpan(new Date_Span((integer)$sec));
- }
-
- /**
- * Adds a time span to the date
- *
- * Adds a time span to the date
- *
- * @access public
- * @param object Date_Span $span the time span to add
- */
- function addSpan($span)
- {
- if (!is_a($span, 'Date_Span')) {
- return;
- }
-
- $this->second += $span->second;
- if ($this->second >= 60) {
- $this->minute++;
- $this->second -= 60;
- }
-
- $this->minute += $span->minute;
- if ($this->minute >= 60) {
- $this->hour++;
- if ($this->hour >= 24) {
- list($this->year, $this->month, $this->day) =
- sscanf(Date_Calc::nextDay($this->day, $this->month, $this->year), "%04s%02s%02s");
- $this->hour -= 24;
- }
- $this->minute -= 60;
- }
-
- $this->hour += $span->hour;
- if ($this->hour >= 24) {
- list($this->year, $this->month, $this->day) =
- sscanf(Date_Calc::nextDay($this->day, $this->month, $this->year), "%04s%02s%02s");
- $this->hour -= 24;
- }
-
- $d = Date_Calc::dateToDays($this->day, $this->month, $this->year);
- $d += $span->day;
-
- list($this->year, $this->month, $this->day) =
- sscanf(Date_Calc::daysToDate($d), "%04s%02s%02s");
- $this->year = intval($this->year);
- $this->month = intval($this->month);
- $this->day = intval($this->day);
- }
-
- /**
- * Subtracts a given number of seconds from the date
- *
- * Subtracts a given number of seconds from the date
- *
- * @access public
- * @param int $sec the number of seconds to subtract
- */
- function subtractSeconds($sec)
- {
- $this->subtractSpan(new Date_Span($sec));
- }
-
- /**
- * Subtracts a time span to the date
- *
- * Subtracts a time span to the date
- *
- * @access public
- * @param object Date_Span $span the time span to subtract
- */
- function subtractSpan($span)
- {
- if (!is_a($span, 'Date_Span')) {
- return;
- }
- if ($span->isEmpty()) {
- return;
- }
-
- $this->second -= $span->second;
- if ($this->second < 0) {
- $this->minute--;
- $this->second += 60;
- }
-
- $this->minute -= $span->minute;
- if ($this->minute < 0) {
- $this->hour--;
- if ($this->hour < 0) {
- list($this->year, $this->month, $this->day) =
- sscanf(Date_Calc::prevDay($this->day, $this->month, $this->year), "%04s%02s%02s");
- $this->hour += 24;
- }
- $this->minute += 60;
- }
-
- $this->hour -= $span->hour;
- if ($this->hour < 0) {
- list($this->year, $this->month, $this->day) =
- sscanf(Date_Calc::prevDay($this->day, $this->month, $this->year), "%04s%02s%02s");
- $this->hour += 24;
- }
-
- $d = Date_Calc::dateToDays($this->day, $this->month, $this->year);
- $d -= $span->day;
-
- list($this->year, $this->month, $this->day) =
- sscanf(Date_Calc::daysToDate($d), "%04s%02s%02s");
- $this->year = intval($this->year);
- $this->month = intval($this->month);
- $this->day = intval($this->day);
- }
-
- /**
- * Compares two dates
- *
- * Compares two dates. Suitable for use
- * in sorting functions.
- *
- * @access public
- * @param object Date $d1 the first date
- * @param object Date $d2 the second date
- * @return int 0 if the dates are equal, -1 if d1 is before d2, 1 if d1 is after d2
- */
- function compare($d1, $d2)
- {
- $d1->convertTZ(new Date_TimeZone('UTC'));
- $d2->convertTZ(new Date_TimeZone('UTC'));
- $days1 = Date_Calc::dateToDays($d1->day, $d1->month, $d1->year);
- $days2 = Date_Calc::dateToDays($d2->day, $d2->month, $d2->year);
- if ($days1 < $days2) return -1;
- if ($days1 > $days2) return 1;
- if ($d1->hour < $d2->hour) return -1;
- if ($d1->hour > $d2->hour) return 1;
- if ($d1->minute < $d2->minute) return -1;
- if ($d1->minute > $d2->minute) return 1;
- if ($d1->second < $d2->second) return -1;
- if ($d1->second > $d2->second) return 1;
- return 0;
- }
-
- /**
- * Test if this date/time is before a certain date/time
- *
- * Test if this date/time is before a certain date/time
- *
- * @access public
- * @param object Date $when the date to test against
- * @return boolean true if this date is before $when
- */
- function before($when)
- {
- if (Date::compare($this,$when) == -1) {
- return true;
- } else {
- return false;
- }
- }
-
- /**
- * Test if this date/time is after a certian date/time
- *
- * Test if this date/time is after a certian date/time
- *
- * @access public
- * @param object Date $when the date to test against
- * @return boolean true if this date is after $when
- */
- function after($when)
- {
- if (Date::compare($this,$when) == 1) {
- return true;
- } else {
- return false;
- }
- }
-
- /**
- * Test if this date/time is exactly equal to a certian date/time
- *
- * Test if this date/time is exactly equal to a certian date/time
- *
- * @access public
- * @param object Date $when the date to test against
- * @return boolean true if this date is exactly equal to $when
- */
- function equals($when)
- {
- if (Date::compare($this,$when) == 0) {
- return true;
- } else {
- return false;
- }
- }
-
- /**
- * Determine if this date is in the future
- *
- * Determine if this date is in the future
- *
- * @access public
- * @return boolean true if this date is in the future
- */
- function isFuture()
- {
- $now = new Date();
- if ($this->after($now)) {
- return true;
- } else {
- return false;
- }
- }
-
- /**
- * Determine if this date is in the past
- *
- * Determine if this date is in the past
- *
- * @access public
- * @return boolean true if this date is in the past
- */
- function isPast()
- {
- $now = new Date();
- if ($this->before($now)) {
- return true;
- } else {
- return false;
- }
- }
-
- /**
- * Determine if the year in this date is a leap year
- *
- * Determine if the year in this date is a leap year
- *
- * @access public
- * @return boolean true if this year is a leap year
- */
- function isLeapYear()
- {
- return Date_Calc::isLeapYear($this->year);
- }
-
- /**
- * Get the Julian date for this date
- *
- * Get the Julian date for this date
- *
- * @access public
- * @return int the Julian date
- */
- function getJulianDate()
- {
- return Date_Calc::julianDate($this->day, $this->month, $this->year);
- }
-
- /**
- * Gets the day of the week for this date
- *
- * Gets the day of the week for this date (0=Sunday)
- *
- * @access public
- * @return int the day of the week (0=Sunday)
- */
- function getDayOfWeek()
- {
- return Date_Calc::dayOfWeek($this->day, $this->month, $this->year);
- }
-
- /**
- * Gets the week of the year for this date
- *
- * Gets the week of the year for this date
- *
- * @access public
- * @return int the week of the year
- */
- function getWeekOfYear()
- {
- return Date_Calc::weekOfYear($this->day, $this->month, $this->year);
- }
-
- /**
- * Gets the quarter of the year for this date
- *
- * Gets the quarter of the year for this date
- *
- * @access public
- * @return int the quarter of the year (1-4)
- */
- function getQuarterOfYear()
- {
- return Date_Calc::quarterOfYear($this->day, $this->month, $this->year);
- }
-
- /**
- * Gets number of days in the month for this date
- *
- * Gets number of days in the month for this date
- *
- * @access public
- * @return int number of days in this month
- */
- function getDaysInMonth()
- {
- return Date_Calc::daysInMonth($this->month, $this->year);
- }
-
- /**
- * Gets the number of weeks in the month for this date
- *
- * Gets the number of weeks in the month for this date
- *
- * @access public
- * @return int number of weeks in this month
- */
- function getWeeksInMonth()
- {
- return Date_Calc::weeksInMonth($this->month, $this->year);
- }
-
- /**
- * Gets the full name or abbriviated name of this weekday
- *
- * Gets the full name or abbriviated name of this weekday
- *
- * @access public
- * @param boolean $abbr abbrivate the name
- * @return string name of this day
- */
- function getDayName($abbr = false, $length = 3)
- {
- if ($abbr) {
- return Date_Calc::getWeekdayAbbrname($this->day, $this->month, $this->year, $length);
- } else {
- return Date_Calc::getWeekdayFullname($this->day, $this->month, $this->year);
- }
- }
-
- /**
- * Gets the full name or abbriviated name of this month
- *
- * Gets the full name or abbriviated name of this month
- *
- * @access public
- * @param boolean $abbr abbrivate the name
- * @return string name of this month
- */
- function getMonthName($abbr = false)
- {
- if ($abbr) {
- return Date_Calc::getMonthAbbrname($this->month);
- } else {
- return Date_Calc::getMonthFullname($this->month);
- }
- }
-
- /**
- * Get a Date object for the day after this one
- *
- * Get a Date object for the day after this one.
- * The time of the returned Date object is the same as this time.
- *
- * @access public
- * @return object Date Date representing the next day
- */
- function getNextDay()
- {
- $day = Date_Calc::nextDay($this->day, $this->month, $this->year, "%Y-%m-%d");
- $date = sprintf("%s %02d:%02d:%02d", $day, $this->hour, $this->minute, $this->second);
- $newDate = new Date();
- $newDate->setDate($date);
- return $newDate;
- }
-
- /**
- * Get a Date object for the day before this one
- *
- * Get a Date object for the day before this one.
- * The time of the returned Date object is the same as this time.
- *
- * @access public
- * @return object Date Date representing the previous day
- */
- function getPrevDay()
- {
- $day = Date_Calc::prevDay($this->day, $this->month, $this->year, "%Y-%m-%d");
- $date = sprintf("%s %02d:%02d:%02d", $day, $this->hour, $this->minute, $this->second);
- $newDate = new Date();
- $newDate->setDate($date);
- return $newDate;
- }
-
- /**
- * Get a Date object for the weekday after this one
- *
- * Get a Date object for the weekday after this one.
- * The time of the returned Date object is the same as this time.
- *
- * @access public
- * @return object Date Date representing the next weekday
- */
- function getNextWeekday()
- {
- $day = Date_Calc::nextWeekday($this->day, $this->month, $this->year, "%Y-%m-%d");
- $date = sprintf("%s %02d:%02d:%02d", $day, $this->hour, $this->minute, $this->second);
- $newDate = new Date();
- $newDate->setDate($date);
- return $newDate;
- }
-
- /**
- * Get a Date object for the weekday before this one
- *
- * Get a Date object for the weekday before this one.
- * The time of the returned Date object is the same as this time.
- *
- * @access public
- * @return object Date Date representing the previous weekday
- */
- function getPrevWeekday()
- {
- $day = Date_Calc::prevWeekday($this->day, $this->month, $this->year, "%Y-%m-%d");
- $date = sprintf("%s %02d:%02d:%02d", $day, $this->hour, $this->minute, $this->second);
- $newDate = new Date();
- $newDate->setDate($date);
- return $newDate;
- }
-
-
- /**
- * Returns the year field of the date object
- *
- * Returns the year field of the date object
- *
- * @access public
- * @return int the year
- */
- function getYear()
- {
- return $this->year;
- }
-
- /**
- * Returns the month field of the date object
- *
- * Returns the month field of the date object
- *
- * @access public
- * @return int the month
- */
- function getMonth()
- {
- return $this->month;
- }
-
- /**
- * Returns the day field of the date object
- *
- * Returns the day field of the date object
- *
- * @access public
- * @return int the day
- */
- function getDay()
- {
- return (int)$this->day;
- }
-
- /**
- * Returns the hour field of the date object
- *
- * Returns the hour field of the date object
- *
- * @access public
- * @return int the hour
- */
- function getHour()
- {
- return $this->hour;
- }
-
- /**
- * Returns the minute field of the date object
- *
- * Returns the minute field of the date object
- *
- * @access public
- * @return int the minute
- */
- function getMinute()
- {
- return $this->minute;
- }
-
- /**
- * Returns the second field of the date object
- *
- * Returns the second field of the date object
- *
- * @access public
- * @return int the second
- */
- function getSecond()
- {
- return $this->second;
- }
-
- /**
- * Set the year field of the date object
- *
- * Set the year field of the date object, invalid years (not 0-9999) are set to 0.
- *
- * @access public
- * @param int $y the year
- */
- function setYear($y)
- {
- if ($y < 0 || $y > 9999) {
- $this->year = 0;
- } else {
- $this->year = $y;
- }
- }
-
- /**
- * Set the month field of the date object
- *
- * Set the month field of the date object, invalid months (not 1-12) are set to 1.
- *
- * @access public
- * @param int $m the month
- */
- function setMonth($m)
- {
- if ($m < 1 || $m > 12) {
- $this->month = 1;
- } else {
- $this->month = $m;
- }
- }
-
- /**
- * Set the day field of the date object
- *
- * Set the day field of the date object, invalid days (not 1-31) are set to 1.
- *
- * @access public
- * @param int $d the day
- */
- function setDay($d)
- {
- if ($d > 31 || $d < 1) {
- $this->day = 1;
- } else {
- $this->day = $d;
- }
- }
-
- /**
- * Set the hour field of the date object
- *
- * Set the hour field of the date object in 24-hour format.
- * Invalid hours (not 0-23) are set to 0.
- *
- * @access public
- * @param int $h the hour
- */
- function setHour($h)
- {
- if ($h > 23 || $h < 0) {
- $this->hour = 0;
- } else {
- $this->hour = $h;
- }
- }
-
- /**
- * Set the minute field of the date object
- *
- * Set the minute field of the date object, invalid minutes (not 0-59) are set to 0.
- *
- * @access public
- * @param int $m the minute
- */
- function setMinute($m)
- {
- if ($m > 59 || $m < 0) {
- $this->minute = 0;
- } else {
- $this->minute = $m;
- }
- }
-
- /**
- * Set the second field of the date object
- *
- * Set the second field of the date object, invalid seconds (not 0-59) are set to 0.
- *
- * @access public
- * @param int $s the second
- */
- function setSecond($s) {
- if ($s > 59 || $s < 0) {
- $this->second = 0;
- } else {
- $this->second = $s;
- }
- }
-
- } // Date
-
-
- //
- // END
- ?>
-