PHP CDate::addMonths方法代码示例

 /**
 * Calculating if an recurrent date is in the given period
 * @param Date Start date of the period
 * @param Date End date of the period
 * @param Date Start date of the Date Object
 * @param Date End date of the Date Object
 * @param integer Type of Recurrence
 * @param integer Times of Recurrence
 * @param integer Time of Recurrence
 * @return array Calculated Start and End Dates for the recurrent Event for the given Period
 */
 function getRecurrentEventforPeriod($start_date, $end_date, $event_start_date, $event_end_date, $event_recurs, $event_times_recuring, $j)
 {
     //this array will be returned
     $transferredEvent = array();
     //create Date Objects for Event Start and Event End
     $eventStart = new CDate($event_start_date);
     $eventEnd = new CDate($event_end_date);
     //Time of Recurence = 0 (first occurence of event) has to be checked, too.
     if ($j > 0) {
         switch ($event_recurs) {
             case 1:
                 $eventStart->addSpan(new Date_Span(3600 * $j));
                 $eventEnd->addSpan(new Date_Span(3600 * $j));
                 break;
             case 2:
                 $eventStart->addDays($j);
                 $eventEnd->addDays($j);
                 break;
             case 3:
                 $eventStart->addDays(7 * $j);
                 $eventEnd->addDays(7 * $j);
                 break;
             case 4:
                 $eventStart->addDays(14 * $j);
                 $eventEnd->addDays(14 * $j);
                 break;
             case 5:
                 $eventStart->addMonths($j);
                 $eventEnd->addMonths($j);
                 break;
             case 6:
                 $eventStart->addMonths(3 * $j);
                 $eventEnd->addMonths(3 * $j);
                 break;
             case 7:
                 $eventStart->addMonths(6 * $j);
                 $eventEnd->addMonths(6 * $j);
                 break;
             case 8:
                 $eventStart->addMonths(12 * $j);
                 $eventEnd->addMonths(12 * $j);
                 break;
             default:
                 break;
         }
     }
     if ($start_date->compare($start_date, $eventStart) <= 0 && $end_date->compare($end_date, $eventEnd) >= 0) {
         // add temporarily moved Event Start and End dates to returnArray
         $transferredEvent = array($eventStart, $eventEnd);
     }
     // return array with event start and end dates for given period (positive case)
     // or an empty array (negative case)
     return $transferredEvent;
 }

$new_end->addMonths(-$scroll_date);
echo 'f.sdate.value="' . $new_start->format(FMT_TIMESTAMP_DATE) . '";';
echo 'f.edate.value="' . $new_end->format(FMT_TIMESTAMP_DATE) . '";';
?>
	document.editFrm.display_option.value = "custom";
	f.submit()
}

function scrollNext() {
	f = document.editFrm;
<?php 
$new_start = new CDate($start_date);
$new_start->day = 1;
$new_end = new CDate($end_date);
$new_start->addMonths($scroll_date);
$new_end->addMonths($scroll_date);
echo 'f.sdate.value="' . $new_start->format(FMT_TIMESTAMP_DATE) . '";';
echo 'f.edate.value="' . $new_end->format(FMT_TIMESTAMP_DATE) . '";';
?>
	document.editFrm.display_option.value = "custom";
	f.submit()
}

function showThisMonth() {
	document.editFrm.display_option.value = "this_month";
	document.editFrm.submit();
}

function showFullProject() {
	document.editFrm.display_option.value = "all";
	document.editFrm.submit();

        $AppUI->setState('TimecardMonthlyUserId', $_GET['user_id']);
    } else {
        $AppUI->setState('TimecardMonthlyUserId', $AppUI->user_id);
    }
    $user_id = $AppUI->getState('TimecardMonthlyUserId') ? $AppUI->getState('TimecardMonthlyUserId') : 0;
} else {
    $user_id = $AppUI->user_id;
}
$start_report = new CDate();
$start_report->setMonth($month);
$start_report->setYear($year);
$start_report->setDay(1);
$start_report->setTime(0, 0, 0);
$end_report = new CDate();
$end_report->copy($start_report);
$end_report->addMonths(1);
$end_report->addDays(-1);
$end_report->setTime(23, 59, 59);
//Get hash of users
$sql = "SELECT user_id, contact_email, concat(contact_last_name,' ',contact_first_name) as name FROM users LEFT JOIN contacts AS c ON users.user_contact = contact_id ORDER BY contact_last_name, contact_first_name;";
$result = db_loadList($sql);
$people = array();
// users list
foreach ($result as $row) {
    $people[$row['user_id']] = $row;
    $users[$row['user_id']] = $row['name'];
}
unset($result);
$sql = "\r\n        select distinct(project_id), project_name from task_log\r\n        left join tasks on tasks.task_id = task_log.task_log_task\r\n        left join projects on projects.project_id = tasks.task_project\r\n        where\r\n            task_log_date >= '" . $start_report->format(FMT_DATETIME_MYSQL) . "'\r\n        and task_log_date <= '" . $end_report->format(FMT_DATETIME_MYSQL) . "'\r\n        and task_log_task != 0\r\n        and task_log_creator = " . $user_id . "\r\n        order by project_name\r\n\t\t";
#    echo $sql;
$projects = array();

natsort($projFilter);
// months to scroll
$scroll_date = 1;
$display_option = dPgetParam($_POST, 'display_option', 'this_month');
// format dates
$df = $AppUI->getPref('SHDATEFORMAT');
if ($display_option == 'custom') {
    // custom dates
    $start_date = intval($sdate) ? new CDate($sdate) : new CDate();
    $end_date = intval($edate) ? new CDate($edate) : new CDate();
} else {
    // month
    $start_date = new CDate();
    $start_date->day = 1;
    $end_date = new CDate($start_date);
    $end_date->addMonths($scroll_date);
}
// setup the title block
if (!@$min_view) {
    $titleBlock = new CTitleBlock('Gantt Chart');
    $titleBlock->addButton('projects list', '?m=projects');
    $titleBlock->show();
}
?>

<script language="javascript">

function scrollPrev() {
	f = document.editFrm;
<?php 
$new_start = $start_date;