/**
* Support all JevDate::strftime() parameter for Window systems
*
* @param string $format
* @param int $timestamp
* @return string formated string
*/
function jev_strftime($format = '', $timestamp = null)
{
if (!$timestamp) {
$timestamp = time();
}
// Replace names by own translation to get rid of improper os system library
if (strpos($format, '%a') !== false) {
$format = str_replace('%a', JEVHelper::getShortDayName(date('w', $timestamp)), $format);
}
if (strpos($format, '%A') !== false) {
$format = str_replace('%A', JEVHelper::getDayName(date('w', $timestamp)), $format);
}
if (strpos($format, '%b') !== false) {
$format = str_replace('%b', JEVHelper::getShortMonthName(date('n', $timestamp)), $format);
}
if (strpos($format, '%B') !== false) {
$format = str_replace('%B', JEVHelper::getMonthName(date('n', $timestamp)), $format);
}
if (JUtility::isWinOS()) {
if (!class_exists('JEV_CompatWin')) {
require_once dirname(__FILE__) . '/compatwin.php';
}
return JEV_CompatWin::win_strftime($format, $timestamp);
} else {
return JevDate::strftime($format, $timestamp);
}
}
/**
* Get week number according ISO 8601
*
* @static
* @param int $date date
* @return int weeknumber
*/
function _getWeekNumberISO8601($date)
{
$thursday = JEV_CompatWin::_getThursdayOfWeek($date);
$thursday_Y = JevDate::strftime('%Y', $thursday);
$first_th = JEV_CompatWin::_getThursdayOfWeek(JevDate::strtotime($thursday_Y . '-01-04'));
return (JevDate::strftime('%j', $thursday) - JevDate::strftime('%j', $first_th)) / 7 + 1;
}