Finding elapsed time between two times - HTML Forums

Akkernight · 10-06-2009, 06:34 AM

Hello.

I'm having an issue with calculating the elapsed time between two times, and since my hoster doesn't provide PHP 3.0 yet, I can't make the premade functions, so I have to make my own.

Now, my PHP knowledge is new so I'm not used to functions and don't know many.

Code:

function time_diff($timeDeltaOne, $timeDeltaTwo){
	if($timeDeltaOne > $timeDeltaTwo){
		$time_latter = $timeDeltaOne;
		$time_earlier = $timeDeltaTwo;
	}
	else{
		$time_earlier = $timeDeltaOne;
		$time_latter = $timeDeltaTwo;
	}
	
	$diff = time_latter - time_earlier;
	
	return $diff;
		
}

This doesn't work, which is kinda obvious, I need integers but I don't know how to get some :S
So all help is appreciated and thanks in advance!

Horus_Kol · 10-06-2009, 07:19 PM

Code:

$diff = $time_latter -  $time_earlier;

not at all sure why your function doesn't work (if the above is a typo) - what values are you sending to the function?

Can we see an example of use?

Akkernight · 10-07-2009, 09:32 AM

oh whoops! I forgot the values, I was poundering over what code I was missing to post :S

Code:

$date = new DateTime();
$lastDate = new DateTime();
time_diff($date, $lateDate);

I hope this helps with the confusion

¥åßßå · 10-07-2009, 12:36 PM

Quote:

Originally Posted by Akkernight

and since my hoster doesn't provide PHP 3.0

Change hosts!

Quote:

Originally Posted by Horus_Kol

Code:

$diff = $time_latter -  $time_earlier;

Assume you have the red bits in your code?

Quote:

Originally Posted by Akkernight

Code:

$date = new DateTime();
$lastDate = new DateTime();
time_diff($date, $lateDate);

$lastDate && $lateDate?

Also, you don't do anything with the result of your function?

¥

Akkernight · 10-07-2009, 01:00 PM

Quote:

Originally Posted by ¥åßßå

Change hosts!

Assume you have the red bits in your code?

$lastDate && $lateDate?

Also, you don't do anything with the result of your function?

¥

Well, I did echo the result and it turned to be 0 ... Also, I wrote some of the code directly into the reply box, so there I made some typos :S Anyways, your time is appreciated also maybe I forgot the '$' at the sub. part...
Also, I spent 1 hour talking to my host trying to get them to update, yet eventually I just got told that it won't come for some months! And I'll have to wait 'til my subscribion's off 'til I change host

¥åßßå · 10-07-2009, 01:47 PM

The chances are that your (test) times have bugger all difference ( hence the "zero" ) .. you're setting both vars within nano-seconds of each other

¥

Akkernight · 10-07-2009, 04:43 PM

ok, outputted the errors in a human readable manner...
http://aeresentertainment.com/three_...os_x=0&pos_y=0
top side of there the test results are, I've made tests that are several hours in between, still returns 0

Akkernight · 10-09-2009, 08:05 AM

*bump*

This is still an issue :S

¥åßßå · 10-09-2009, 05:48 PM

Sorry, I've had a couple of busy days, so not even had time to think about my own problems, let alone yours .... *if* I get chance before I sod off on holiday ( for 14 days in malta

) then I'll post it here?

In the mean time, you may wish to change your date format into a timestamp

¥

Akkernight · 10-10-2009, 08:13 AM

ok, fixed it

Here's the fix.

EDIT: Feel kinda stupid for not figuring this out >.<

Code:

function DateTime_diff($DateTime_DeltaOne, $DateTime_DeltaTwo, $format){

	if(strtotime($DateTime_DeltaOne->format($format)) > strtotime($DateTime_DeltaTwo->format($format))){
		$time_earlier = strtotime($DateTime_DeltaTwo->format($format));
		$time_latter = strtotime($DateTime_DeltaOne->format($format));
	}
	else{
		$time_earlier = strtotime($DateTime_DeltaOne->format($format));
		$time_latter = strtotime($DateTime_DeltaTwo->format($format));
	}
	
	
	
	$diff = $time_latter - $time_earlier;
	
	
	return $diff;
		
}

Code:

$diff = DateTime_diff($lastDate, $date, "Y-m-d H:i:s");