PHP - Working With Dates And Times

Hello,

I am struggling here. Basically I have integrated a Google Maps API with a website to show the location of the next session.

This script will take the next session and return its location, so the lat and long can be fetched from another table and fed into the API.

Here is the timetable in a MySQL table:



I am trying to do/say the following:

* Show current session (if in progress)
* Show next session. (Only to be fetched from db when the previous session has expired)
* If there are no sessions left on today's date, show next session on next day with sessions.

How could I write this as a PHP query in order to the fetch the location data?

Thanks,
George.

Hi,

I want to check entered dates and times that a user selects against my "book-off" calendar which is a Google Calendar.
The dates&times from Google is in the form: 2011-04-29T23:00:00.000+02:00

The dates in my booking software (ABPro) is in the form: 2011-04-29
Times in form: 23:00:00

All I want the function to return is a number other than 0 if any of the dates/times in Google feed overlap the requested date/time entered in the booking.

So I add a function and get the feed from Google:
Code: [Select]
function checkOverlapG($calendarID, $startdate, $starttime, $enddate, $endtime){
// Create an instance of the Calendar service using an unauthenticated
//HTTP client
$service = new Zend_Gdata_Calendar();
//Retrieving events in order of start time
$query = $service->newEventQuery();
$query->setUser('calendarID');
// Set to $query->setVisibility('private-magicCookieValue') if using MagicCookie auth
$query->setVisibility('public');
$query->setProjection('full');
$query->setOrderby('starttime');
$query->setSortOrder('ascending');                  //start with first event in future
//seFutureevents must be commented out when using start and end times.
$query->setFutureevents('true');
$query->setSingleEvents('true');
$query->setMaxResults('200');      //Guess this could be anything, but can possibly make things slower. Default 25 events
//$query->setStartMin('2006-12-01');
//$query->setStartMax('2006-12-16);  // setStartMax is exclusive, will not include last date. Must add +1 day.
// Retrieve the event list from the calendar server
try {
$eventFeed = $service->getCalendarEventFeed($query);
               }  catch (Zend_Gdata_App_Exception $e) {
echo "Error: " . $e->getMessage();
return null;
}

Now I want to compare the dates and times and see if any of them collide or overlap. I want to add a counter, and if any of the events overlap, I want the counter to add one number.
1. the first thing I do is check if the event feed include. any events.
2. then I add a counter
3. then I run a foreach to retrieve events one at a time
4. then I change the date and time format from Google Event to match the date and time format form the booking.
5. If fullday event from google, no time information is added, so I add this
6. COMPARE DATES AND TIMES and if overlapping events --> n++;

I've not gotten this code to work. Probably I'm doing something wrong, and I'm sorry but I'm completely new to this.
Getting the Google Calendar data is working fine, and so is changing the format of the dates/times to be same format as request data.
After that (and before, I don't know).

Code: [Select]
$gCount = count($eventFeed);
$n = 0;
if (gCount>0){
foreach($eventFeed as $event){
foreach ($event->when as $when) {
//Getting rid of extra 00's and time zone info for now
$startGevent = $when->startTime;
$startGevent = str_replace('.000+02:00',"",$startGevent);
$endGevent = $when->endTime;
$endGevent = str_replace('.000+02:00',"",$endGevent);

//Splitting date and time into two variables
list($startDateEvent, $startTimeEvent) = split('T',$startGevent);
list($endDateEvent, $endTimeEvent) = split('T',$endGevent);

//Fill in the blanks
if($startTimeEvent!=0) {}
else{$startTimeEvent = "00:00:00";}
if($endTimeEvent!=0) {}
else{$endTimeEvent = "00:00:00";}

//Compare dates
if($startdate == $endDateEvent){
if($starttime > $endTimeEvent OR $endtime < $startTimeEvent){}
else {
n++;
}
} if($enddate == $startDateEvent){
if($endtime < $startTimeEvent OR $starttime > $endTimeEvent){}
else {
n++;
}
}

}
}
return $n;
}

I need to do some reporting and I need some help.  The reporting periods are as follows:

08/28-09/03
09/04-09/10
09/11-09/17
09/18-09/24
09/25-10/01

So, they are Sunday through Saturday throughout each month.  Say the date is Sept. 7.... How can I find out the date of the Sunday before last.  How can I know what month I am reporting for?

I am querying the database each Wed. for sales data from the previous month.  I want to take the totals from my query and store them in a separate table.  The problem is, I don't know how to find out what month the previous week falls into.  And I don't know how to find the date of the Sunday before last.

Thanks,

Jake

Hi all

What is the best way to work with times that are stored without there date but with only one date field regarding both times?

Thanks

Hello all,

I'm collecting date/time information via a form and would like to convert the info into something that I can stick in my MySql database (a timestamp???).  I'm collecting the current month (variable name: month-- of the form "mm"), day (variable name: day -- of the form "dd"), year (variable name: year -- of the form "yyyy"), time of day (variable name: time -- of the form "h:00"), and before or after noon (variable name: ampm -- of the form "am" or "pm").  Any suggestions as to how to change this into a quantity that I can store as a value and then use to compare to other date/times would be appreciated.

Thanks!