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<?php
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/*
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$Id: datetime.php 386 2006-01-12 11:36:39Z hpdl $
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osCommerce, Open Source E-Commerce Solutions
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http://www.oscommerce.com
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Copyright (c) 2006 osCommerce
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Released under the GNU General Public License
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*/
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class osC_DateTime {
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function getNow() {
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return date('Y-m-d H:i:s');
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}
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function getShort($date = '') {
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global $osC_Language;
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if (empty($date)) {
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$date = osC_DateTime::getNow();
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}
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$year = substr($date, 0, 4);
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$month = (int)substr($date, 5, 2);
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$day = (int)substr($date, 8, 2);
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$hour = (int)substr($date, 11, 2);
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$minute = (int)substr($date, 14, 2);
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$second = (int)substr($date, 17, 2);
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if (@date('Y', mktime($hour, $minute, $second, $month, $day, $year)) == $year) {
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return strftime($osC_Language->getDateFormatShort(), mktime($hour, $minute, $second, $month, $day, $year));
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} else {
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return ereg_replace('2037', $year, strftime($osC_Language->getDateFormatShort(), mktime($hour, $minute, $second, $month, $day, 2037)));
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}
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}
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function getLong($date = '') {
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global $osC_Language;
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if (empty($date)) {
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$date = osC_DateTime::getNow();
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}
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$year = substr($date, 0, 4);
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$month = (int)substr($date, 5, 2);
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$day = (int)substr($date, 8, 2);
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$hour = (int)substr($date, 11, 2);
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$minute = (int)substr($date, 14, 2);
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$second = (int)substr($date, 17, 2);
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if (@date('Y', mktime($hour, $minute, $second, $month, $day, $year)) == $year) {
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return strftime($osC_Language->getDateFormatLong(), mktime($hour, $minute, $second, $month, $day, $year));
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} else {
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return ereg_replace('2037', $year, strftime($osC_Language->getDateFormatLong(), mktime($hour, $minute, $second, $month, $day, 2037)));
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}
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}
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function isLeapYear($year = '') {
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if (empty($year)) {
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$year = $this->year;
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}
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if ($year % 100 == 0) {
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if ($year % 400 == 0) {
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return true;
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}
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} else {
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if (($year % 4) == 0) {
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return true;
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}
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}
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return false;
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}
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function validate($date_to_check, $format_string, &$date_array) {
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$separator_idx = -1;
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$separators = array('-', ' ', '/', '.');
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$month_abbr = array('jan','feb','mar','apr','may','jun','jul','aug','sep','oct','nov','dec');
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$no_of_days = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
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$format_string = strtolower($format_string);
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if (strlen($date_to_check) != strlen($format_string)) {
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return false;
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}
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$size = sizeof($separators);
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for ($i=0; $i<$size; $i++) {
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$pos_separator = strpos($date_to_check, $separators[$i]);
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if ($pos_separator != false) {
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$date_separator_idx = $i;
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break;
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}
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}
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for ($i=0; $i<$size; $i++) {
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$pos_separator = strpos($format_string, $separators[$i]);
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if ($pos_separator != false) {
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$format_separator_idx = $i;
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break;
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}
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}
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if ($date_separator_idx != $format_separator_idx) {
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return false;
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}
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if ($date_separator_idx != -1) {
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$format_string_array = explode( $separators[$date_separator_idx], $format_string );
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if (sizeof($format_string_array) != 3) {
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return false;
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}
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$date_to_check_array = explode( $separators[$date_separator_idx], $date_to_check );
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if (sizeof($date_to_check_array) != 3) {
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return false;
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}
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$size = sizeof($format_string_array);
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for ($i=0; $i<$size; $i++) {
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if ($format_string_array[$i] == 'mm' || $format_string_array[$i] == 'mmm') $month = $date_to_check_array[$i];
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if ($format_string_array[$i] == 'dd') $day = $date_to_check_array[$i];
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if ( ($format_string_array[$i] == 'yyyy') || ($format_string_array[$i] == 'aaaa') ) $year = $date_to_check_array[$i];
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}
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} else {
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if (strlen($format_string) == 8 || strlen($format_string) == 9) {
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$pos_month = strpos($format_string, 'mmm');
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if ($pos_month != false) {
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$month = substr( $date_to_check, $pos_month, 3 );
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$size = sizeof($month_abbr);
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for ($i=0; $i<$size; $i++) {
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if ($month == $month_abbr[$i]) {
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$month = $i;
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break;
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}
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}
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} else {
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$month = substr($date_to_check, strpos($format_string, 'mm'), 2);
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}
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} else {
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return false;
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}
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$day = substr($date_to_check, strpos($format_string, 'dd'), 2);
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$year = substr($date_to_check, strpos($format_string, 'yyyy'), 4);
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}
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if (strlen($year) != 4) {
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return false;
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}
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if (!settype($year, 'integer') || !settype($month, 'integer') || !settype($day, 'integer')) {
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return false;
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}
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if ($month > 12 || $month < 1) {
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return false;
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}
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if ($day < 1) {
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return false;
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}
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if ($this->isLeapYear($year)) {
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$no_of_days[1] = 29;
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}
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if ($day > $no_of_days[$month - 1]) {
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return false;
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}
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$date_array = array($year, $month, $day);
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return true;
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}
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}
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?>
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