Vars not valid outside function

[MuffinMan]

Hi,

I'm trying to create a function which gives the total of time. Now the
problem is that the function resets the int. $hour. How can I get them to be
saved... I tried global $hour etc... but it didn't help and I couldn't find
it.
How can I get these vars to be valid through out the whole script..

Thanks in advance, Maarten

$hour = 0;
$minute = 0;
$second = 0;

function total_time ($track_id)
{
$hour = substr ( $track_id, -6, -4 ) + $hour;
$minute = substr ( $track_id, -4, -2 ) + $minute;
$second = substr ( $track_id, -2 ) + $second;
echo "$hour:$minute: $second <br />";
}

[Daniel Tryba]

Re: Vars not valid outside function

MuffinMan <blah5ReMoVe*TH iS@custodis.cis tron.nl> wrote:[color=blue]
> I'm trying to create a function which gives the total of time. Now the
> problem is that the function resets the int.[/color]

No it doesn't.
[color=blue]
> $hour. How can I get them to be saved... I tried global $hour etc...
> but it didn't help and I couldn't find it.[/color]

To bad you didn't post an example where you used global. My guess is you
put the keyword global in the wrong place.
[color=blue]
> How can I get these vars to be valid through out the whole script..[/color]

You should readup on scopes in PHP:

http://nl2.php.net/manual/en/language.variables.scope.php

Take a close loop al example 7.1 or 7.2.

--

Daniel Tryba

[Pedro Graca]

Re: Vars not valid outside function

MuffinMan wrote:[color=blue]
> I'm trying to create a function which gives the total of time. Now the
> problem is that the function resets the int. $hour. How can I get them to be
> saved... I tried global $hour etc... but it didn't help and I couldn't find
> it.
> How can I get these vars to be valid through out the whole script..
>
> Thanks in advance, Maarten
>
> $hour = 0;
> $minute = 0;
> $second = 0;
>
> function total_time ($track_id)
> {
> $hour = substr ( $track_id, -6, -4 ) + $hour;
> $minute = substr ( $track_id, -4, -2 ) + $minute;
> $second = substr ( $track_id, -2 ) + $second;
> echo "$hour:$minute: $second <br />";
> }[/color]


I'd go about that somewhat differently :-)

<?php // stopwatch.inc.p hp
define('STOP_WA TCH_START', '0');
define('STOP_WA TCH_STOP', '1');

function stop_watch($mod e) {
static $now = 0;

switch ($mode) {
case STOP_WATCH_STAR T:
$now = time();
return true;
break;
case STOP_WATCH_STOP :
return time()-$now;
break;
default:
return false;
}
}
?>


and then in a script where you want it:

<?php
require_once 'stopwatch.inc. php';

stop_watch(STOP _WATCH_START);

/* do something */
sleep(10);

echo date('H:i:s', stop_watch(STOP _WATCH_STOP));
?>

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[MuffinMan]

Re: Vars not valid outside function


| To bad you didn't post an example where you used global. My guess is you
| put the keyword global in the wrong place.

True, I had tried a few things except for the right one... oh well... works
excellend now.... now the finishing touch..
Thanks.. Maarten

[Pedro Graca]

Re: Vars not valid outside function

Pedro Graca wrote:[color=blue]
> <?php
> require_once 'stopwatch.inc. php';
>
> stop_watch(STOP _WATCH_START);
>
> /* do something */
> sleep(10);
>
> echo date('H:i:s', stop_watch(STOP _WATCH_STOP));[/color]

/* BUG! */
/* should be gmdate(): */
echo gmdate('H:i:s', stop_watch(STOP _WATCH_STOP));
[color=blue]
> ?>[/color]

Sorry folks :)

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[MuffinMan]

Re: Vars not valid outside function


"Pedro Graca" <hexkid@hotpop. com> schreef in bericht
news:2g2cjlF3rh hqU2@uni-berlin.de...
| Pedro Graca wrote:
| > <?php
| > require_once 'stopwatch.inc. php';
| >
| > stop_watch(STOP _WATCH_START);
| >
| > /* do something */
| > sleep(10);
| >
| > echo date('H:i:s', stop_watch(STOP _WATCH_STOP));
|
| /* BUG! */
| /* should be gmdate(): */
| echo gmdate('H:i:s', stop_watch(STOP _WATCH_STOP));
|
| > ?>
|

Thanks but I wanted to calculate the total time of all tracks of my cd
collection and since I got all track time's in a database it shouldn't be
hard to calculate....

Maarten

[Pedro Graca]

Re: Vars not valid outside function

MuffinMan wrote:[color=blue]
>
> "Pedro Graca" <hexkid@hotpop. com> schreef in bericht
> news:2g2cjlF3rh hqU2@uni-berlin.de...[/color]

(snip a bunch of code unrelated to the OP's intention)
[color=blue]
> Thanks but I wanted to calculate the total time of all tracks of my cd
> collection and since I got all track time's in a database it shouldn't be
> hard to calculate....[/color]

Oops, sorry for the wrong assumption :-)

Maybe you'd like to change the database and transform the column for the
track time into an int representing the number of seconds; then you just

select sum(track_time) from table

to know how many seconds are in your total collection.


Converting 617000 seconds to "7 days, 3 hours, 23 minutes and 20 seconds"
is left as an exercise :-)

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[Geoff Berrow]

Re: Vars not valid outside function

I noticed that Message-ID: <2g4kgvF4dr33U1 @uni-berlin.de> from Pedro
Graca contained the following:
[color=blue]
>Converting 617000 seconds to "7 days, 3 hours, 23 minutes and 20 seconds"
>is left as an exercise :-)[/color]

function secstofull($sec onds){
$days=floor($se conds/(24*60*60));
$remainder=$sec onds%(24*60*60) ;
$hours= floor($remainde r/3600);
$remainder=$sec onds%(60*60);
$mins=floor($re mainder/60);
$secs=$seconds% 60;
print "$days days, $hours hours, $mins minutes, $secs seconds";
}

But I bet there is an easier way...
--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
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[MuffinMan]

Re: Vars not valid outside function


| Maybe you'd like to change the database and transform the column for the
| track time into an int representing the number of seconds; then you just
|
| select sum(track_time) from table

I could yes, but as one entry can be used for several tunes.. like one is
the same artist and tune name... but from a diffent year and arrangement...
so it is impossible to give one entry a constant track time. Instead of that
I've created a field with a sort of cd id in which can excist more than one
id which are diveded by ';'. They point to the cd which they're from and
what length they are.. in seconds
next digit explains which cd it's from... cd 1 or cd 2 etc
next digit explains which track it is starting at 0
the rest is just the length... HH:MM:SS
example:
id starts with # to make searching a bit easier..
than the first 5 numbers are the cd id wich cd the tune points in this case
#1000010000635 --- ( in one field more of these numbers can excist and they
are divided by ; )
The above track ID point to the cd id below.... the first five digets below
are the same as the first five digits above starting from the '#'
10000, AC/DC, Live: Collectors Edition, Rock, 1992, CD ----- id, artist,
album, genre, year, media

Hope this make any sense... if not... I'll hear... and I'll try harder to
explain... bit late now...... bye bye

Maarten