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class myActivity
{
	var $name;				// (string) activityName
	var $teacher;			// (string) teacher Name
	var $size;				// (int) num pupils
	var $location;			// (string) room location
	var $day;				// (int) 0-6
	var $startTime;			// (int) minutes past midnight
	var $duration;			// (int) number of minutes this clas goes for
	var $isStaff;			// (bool) is for a staff member or not (staff get class sizes, all others get techer name)

	function myActivity($name, $teacher, $size, $location, $day, $startTime, $duration, $isStaff)
	{
		$this->name = $name;
		$this->teacher = $teacher;
		$this->size = $size;
		$this->day = $day;
		$this->startTime = $startTime;
		$this->duration = $duration;
		$this->isStaff = $isStaff;
		$this->location = $location;
	}

	// compare function. Takes into account both day of week and time of day if day of week is the same
	function _cmpDayTimeAsc($item1, $item2)
	{
		if ($item1->day == $item2->day)
		{
			return ($item1->startTime < $item2->startTime) ? -1: 1;
		}
		return ($item1->day < $item2->day) ? -1 : 1;
	}
}

// declare array to hold list of activites, ready for sorting
$actArray = array();

// just add items to the array like so
$actArray[] = new myActivity($curName, $teacherName, $numStudentsInClass, $curLocation, $myDay, $startMin, $curDuration, $isStaff);

// finally sort the array. My compare function ensures that when the classes for the week are displayed, they are displayed in the order that they occur.
$boolDidSort = usort($actArray, array('myActivity', '_cmpDayTimeAsc'));

mark_zxy wrote:

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