probably not fully understanding what I need to do.
I am trying this.
echo "<tr><th>Completion Time:</th></tr><tr><td>". date('F j, Y
g:i:sa',strtotime($row['submit_timestamp']) -
strtotime($row['login_timestamp']))/60 , "</td></tr>";
but just returns a zero value.
On Tue, May 25, 2010 at 12:55 PM, Ashley Sheridan
<ash@xxxxxxxxxxxxxxxxxxxx>wrote:
> On Tue, 2010-05-25 at 12:46 -0400, Bruce Gilbert wrote:
>
> Here is what I currently have.
>
> echo "<tr><th>Completion Time:</th></tr><tr><td>" .
> (strtotime($row['submit_timestamp']) -
> strtotime($row['login_timestamp']))/60 , "</td></tr>";
>
> this gives me an output of 21235172.75
>
> not sure what format that is in? I was hoping for something like 60
> minutes, 30 minutes etc. Don't need the days or seconds. The MySQL
> timestamp is in this format.
>
> 2010-05-17 11:32:45 - 2010-05-17 12:26:13
>
> On Tue, May 25, 2010 at 11:11 AM, Peter Lind <peter.e.lind@xxxxxxxxx> wrote:
> > On 25 May 2010 16:14, Bruce Gilbert <webguync@xxxxxxxxx> wrote:
> >> Thanks. I know my syntax isn't quite right, but is this close to what
> >> I need to do?
> >>
> >> echo "<tr><th>Completion Time:</th></tr><tr><td>" . date('F j, Y
> >> g:i:sa', strtotime($row["login_timestamp"] - ["submit_timestamp"])/60)
> >> . "</td></tr>";
> >>
> >
> > No. Assuming that your timestamp is of the YYYY-mm-dd HH:ii:ss form,
> > you need to do (strtotime(["submit_timestamp"]) -
> > strtotime($row["login_timestamp"]))/60.
> >
> > Regards
> > Peter
> >
> >>
> >> On Tue, May 25, 2010 at 10:01 AM, Peter Lind <peter.e.lind@xxxxxxxxx> wrote:
> >>> On 25 May 2010 15:55, Bruce Gilbert <webguync@xxxxxxxxx> wrote:
> >>>> Here is the situation. I have a form which sets a timestamp when a
> >>>> user logs in using UPDATE in SQL. The field is called
> >>>> 'login_timestamp' and is in a table called 'Candidates'. I have
> >>>> another timestamp which is set when a user submits the form data into
> >>>> the DB and it is called 'submit_timestamp' . What I want to do is
> >>>> determine the amount of time the user takes to complete the form by
> >>>> subtracting the 'login_timestamp' time form the 'submit_timestamp'
> >>>> time. I am using SQL to extract the data here.
> >>>>
> >>>> $sql = "SELECT Responses.name,Answers,submit_timestamp,login_timestamp
> >>>> FROM Responses LEFT JOIN Candidates USING (user_id)";
> >>>>
> >>>> and then to display the timestamp in readable form.
> >>>>
> >>>> echo "<tr><th>Completion Time:</th></tr><tr><td>" . date('F j, Y
> >>>> g:i:sa', strtotime($row["login_timestamp"])) . "</td></tr>";
> >>>>
> >>>> so I need to know how to subtract from two timestamp fields, two
> >>>> different tables and come up with the difference in minutes.
> >>>>
> >>>
> >>> In case you're using MySQL, timediff can do the job:
> >>> http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_timediff
> >>>
> >>> Otherwise, just do strtotime(endtime) - strtotime(starttime) / 60.
> >>> That's the difference in minutes.
> >>>
> >>> Regards
> >>> Peter
> >>>
> >>>
> >>> --
> >>> <hype>
> >>> WWW: http://plphp.dk / http://plind.dk
> >>> LinkedIn: http://www.linkedin.com/in/plind
> >>> BeWelcome/Couchsurfing: Fake51
> >>> Twitter: http://twitter.com/kafe15
> >>> </hype>
> >>>
> >>
> >>
> >>
> >> --
> >> ::Bruce::
> >>
> >
> >
> >
> > --
> > <hype>
> > WWW: http://plphp.dk / http://plind.dk
> > LinkedIn: http://www.linkedin.com/in/plind
> > BeWelcome/Couchsurfing: Fake51
> > Twitter: http://twitter.com/kafe15
> > </hype>
> >
>
>
>
> --
> ::Bruce::
>
>
>
> The value returned from strtotime() is a timestamp, the value you output
> from MySQL isn't a timestamp, it's a string-formatted timestamp. If you need
> to format a timestamp use the date() function.
>
> Thanks,
> Ash
> http://www.ashleysheridan.co.uk
>
>
>
--
::Bruce::
