基于ASP.NET的办公自动化OA系统项目源码（毕业设计）.zip

<?php //-------------------------------------------------------------------------------------------------- // Utilities for our event-fetching scripts. // // Requires PHP 5.2.0 or higher. //-------------------------------------------------------------------------------------------------- // PHP will fatal error if we attempt to use the DateTime class without this being set. date_default_timezone_set('UTC'); class Event { // Tests whether the given ISO8601 string has a time-of-day or not const ALL_DAY_REGEX = '/^\d{4}-\d\d-\d\d$/'; // matches strings like "2013-12-29" public $title; public $allDay; // a boolean public $start; // a DateTime public $end; // a DateTime, or null public $properties = array(); // an array of other misc properties // Constructs an Event object from the given array of key=>values. // You can optionally force the timeZone of the parsed dates. public function __construct($array, $timeZone=null) { $this->title = $array['title']; if (isset($array['allDay'])) { // allDay has been explicitly specified $this->allDay = (bool)$array['allDay']; } else { // Guess allDay based off of ISO8601 date strings $this->allDay = preg_match(self::ALL_DAY_REGEX, $array['start']) && (!isset($array['end']) || preg_match(self::ALL_DAY_REGEX, $array['end'])); } if ($this->allDay) { // If dates are allDay, we want to parse them in UTC to avoid DST issues. $timeZone = null; } // Parse dates $this->start = parseDateTime($array['start'], $timeZone); $this->end = isset($array['end']) ? parseDateTime($array['end'], $timeZone) : null; // Record misc properties foreach ($array as $name => $value) { if (!in_array($name, array('title', 'allDay', 'start', 'end'))) { $this->properties[$name] = $value; } } } // Returns whether the date range of our event intersects with the given all-day range. // $rangeStart and $rangeEnd are assumed to be dates in UTC with 00:00:00 time. public function isWithinDayRange($rangeStart, $rangeEnd) { // Normalize our event's dates for comparison with the all-day range. $eventStart = stripTime($this->start); if (isset($this->end)) { $eventEnd = stripTime($this->end); // normalize } else { $eventEnd = $eventStart; // consider this a zero-duration event } // Check if the two whole-day ranges intersect. return $eventStart < $rangeEnd && $eventEnd >= $rangeStart; } // Converts this Event object back to a plain data array, to be used for generating JSON public function toArray() { // Start with the misc properties (don't worry, PHP won't affect the original array) $array = $this->properties; $array['title'] = $this->title; // Figure out the date format. This essentially encodes allDay into the date string. if ($this->allDay) { $format = 'Y-m-d'; // output like "2013-12-29" } else { $format = 'c'; // full ISO8601 output, like "2013-12-29T09:00:00+08:00" } // Serialize dates into strings $array['start'] = $this->start->format($format); if (isset($this->end)) { $array['end'] = $this->end->format($format); } return $array; } } // Date Utilities //---------------------------------------------------------------------------------------------- // Parses a string into a DateTime object, optionally forced into the given timeZone. function parseDateTime($string, $timeZone=null) { $date = new DateTime( $string, $timeZone ? $timeZone : new DateTimeZone('UTC') // Used only when the string is ambiguous. // Ignored if string has a timeZone offset in it. ); if ($timeZone) { // If our timeZone was ignored above, force it. $date->setTimezone($timeZone); } return $date; } // Takes the year/month/date values of the given DateTime and converts them to a new DateTime, // but in UTC. function stripTime($datetime) { return new DateTime($datetime->format('Y-m-d')); }