Multi dimension arrays

Hi,

This is probably a no-brainer, but I could do with some help here.

I have some code which looks like this

$event = array("Date"=>array(), "Time"=>array(), "Venue"=>array(),
"Event"=>array());
$line = array();

while (!feof($fp))
{
$datein = fgets($fp, 200);
$lineleft = $datein;
$newpos = 0;
$pos = 0;
for ($i = 0; $i < 3; ++$i)
{
$newpos += strpos($lineleft, "*");
array_push($line, substr($datein, $pos, $newpos));
$newpos++;
$lineleft = substr($datein, $newpos, strlen($datein) - $newpos);
$pos = $newpos;
}
$month = substr($line[0], 5, 2);
$day = substr($line[0], 8, 2);
$year = substr($line[0], 0, 4);
if ($year >= $today['year'])
{
if ($month >= $today['mon'])
{
if (($month == $today['mon']) && ($day <= $today['mday']))
continue;
$datet = $day ."-" .$month."-".$year;
array_push($event['Date'], $datet);
}
}
array_push($event['Time'], $line[1]);
array_push($event['Venue'], $line[2]);
array_push($event['Event'], $line[3]);
}
fclose ($fp);

I know the substr stuff works (I can test that and it's fine and dandy).
I know the $month et al works as well (I've cut and pasted it from a
website I run at work). However, I'm not at all sure that how I'm using
the empty arrays (especially the multi-dimension array) is correct.

Could someone give me some advice on this?

Thanks

TTFN

Paul
--
"Logic, my dear Zoe, is merely the ability to be wrong with authority" -
Dr Who

Paul wrote:

[snip]
> for ($i = 0; $i < 3; ++$i)
> {
> $newpos += strpos($lineleft, "*");
> array_push($line, substr($datein, $pos, $newpos));
> $newpos++;
> $lineleft = substr($datein, $newpos, strlen($datein) - $newpos);
> $pos = $newpos;
> }

Small oops, your loop only runs three times, but later you expect $line to
contain 4 values. Unless you have some special plan with the code above,
you could get the same result by just using:
$line = split("\*", $datein);

[snip]
> if ($year >= $today['year'])
> {
> if ($month >= $today['mon'])
> {
> if (($month == $today['mon']) && ($day <= $today['mday']))
> continue;
> $datet = $day ."-" .$month."-".$year;
> array_push($event['Date'], $datet);
> }
> }
> array_push($event['Time'], $line[1]);
> array_push($event['Venue'], $line[2]);
> array_push($event['Event'], $line[3]);

In some conditions $event['Date'] does *not* get an value, while the others
(Time, Venue, Event) do. For instance if $year < $today['year']. I assume
it is not what you intended.

[snip]
> I know the substr stuff works (I can test that and it's fine and dandy).
> I know the $month et al works as well (I've cut and pasted it from a
> website I run at work). However, I'm not at all sure that how I'm using
> the empty arrays (especially the multi-dimension array) is correct.

Use of array_push looks fine.
You could use syntax like $event['Event'][] = $line[3], but the result would
be the same.


/Bent

Bent Stigsen wrote:

> Paul wrote:

>> I know the substr stuff works (I can test that and it's fine and dandy).
>> I know the $month et al works as well (I've cut and pasted it from a
>> website I run at work). However, I'm not at all sure that how I'm using
>> the empty arrays (especially the multi-dimension array) is correct.
>
> Use of array_push looks fine.
> You could use syntax like $event['Event'][] = $line[3], but the result
> would be the same.

Thanks :-)

My main problem though is how to get data out of the array.

For example

echo $event['Event'][$i] . "<br />";

doesn't give anything - even if I have explicity put something into the
array (for example

$event['Event'][0] = "wibble";
$event['Event'][1] = "wobble";
$event['Event'][2] = "fibble";
$event['Event'][3] = "fobble";

for ($i = 0; $i < 4; ++$i)
echo $event['Event'][$i] . " ... " . $i . "<br />";

displays nothing other than " ... 0-3")

Is this more likely to be me or the version of php I'm using?

TTFN

Paul

In message <zi_bg.181096$xt.49656@fe3.news.blueyonder.co.uk >
"Paul F. Johnson" <paul@all-the-johnsons.co.uk> wrote:

>Bent Stigsen wrote:
>
>> Paul wrote:
>
>>> I know the substr stuff works (I can test that and it's fine and dandy).
>>> I know the $month et al works as well (I've cut and pasted it from a
>>> website I run at work). However, I'm not at all sure that how I'm using
>>> the empty arrays (especially the multi-dimension array) is correct.
>>
>> Use of array_push looks fine.
>> You could use syntax like $event['Event'][] = $line[3], but the result
>> would be the same.
>
>Thanks :-)
>
>My main problem though is how to get data out of the array.
>
>For example
>
>echo $event['Event'][$i] . "<br />";
>
>doesn't give anything - even if I have explicity put something into the
>array (for example
>
>$event['Event'][0] = "wibble";
>$event['Event'][1] = "wobble";
>$event['Event'][2] = "fibble";
>$event['Event'][3] = "fobble";
>
>for ($i = 0; $i < 4; ++$i)
> echo $event['Event'][$i] . " ... " . $i . "<br />";
>
>displays nothing other than " ... 0-3")
>
>Is this more likely to be me or the version of php I'm using?
>
>TTFN
>
>Paul

Have you tried [Event(1)]
--
Kev Wells http://kevsoft.topcities.com
http://kevsoft.co.uk/
ICQ 238580561
The older I get the faster I used to be.

Paul F. Johnson wrote:
[snip]
> My main problem though is how to get data out of the array.
>
> For example
>
> echo $event['Event'][$i] . "<br />";
>
> doesn't give anything - even if I have explicity put something into the
> array (for example
>
> $event['Event'][0] = "wibble";
> $event['Event'][1] = "wobble";
> $event['Event'][2] = "fibble";
> $event['Event'][3] = "fobble";
>
> for ($i = 0; $i < 4; ++$i)
> echo $event['Event'][$i] . " ... " . $i . "<br />";
>
> displays nothing other than " ... 0-3")
>
> Is this more likely to be me or the version of php I'm using?

I've tried your example verbatim and output is fine, so I reckon it is
not your code.
I have run the same code on php versions from different major releases
(3.0.17, 4.3.9 and 5.1.2) giving exact same result, so I think it is
safe to say that it is not an issue of php version.

Sorry, I can't really say what your problem is. Perhaps your
braille-display is broken.

/Bent