Setting a varialble using a variable

[jj]

Trying to understand the manual regarding variables to solve the
following.

I'm working with Drupal CMS and have a loop to retrieve values that
are normally fetched by using this variable: $node-

>field_screen_1_caption[0]['view']. The loop should run n times,

incrementing that number 1 so next variable is $node-

>field_screen_2_caption[0]['view'].

Here's what I'm trying in my loop to change that number in the
variable using $i:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = 'node->field_screen_'.$i.'_caption[0][\'view\']';
print $$cap;
}

Doesn't work obviously. Any suggestions for a PHP amateur.

Thanks,
jj

[Kailash Nadh]

On Nov 27, 8:40 pm, jj <[e-mail]:

Trying to understand the manual regarding variables to solve the
following.

I'm working with Drupal CMS and have a loop to retrieve values that
are normally fetched by using this variable: $node->field_screen_1_caption[0]['view']. The loop should run n times,

incrementing that number 1 so next variable is $node-

field_screen_2_caption[0]['view'].

Here's what I'm trying in my loop to change that number in the
variable using $i:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = 'node->field_screen_'.$i.'_caption[0][\'view\']';
print $$cap;

}

Doesn't work obviously. Any suggestions for a PHP amateur.

Thanks,
jj

eval() - http://php.net/eval

for ($i = 1; $i <= $number_of_screens; $i++) {
eval("\$cap = \$node->field_screen_{$i}_caption[0][\"view\"];");
print $cap;
}

--
Kailash Nadh | http://kailashnadh.name

[jj]

Excellent. Thanks, Kailash! I wouldn't have known what to look for.
jj

eval() -http://php.net/eval

for ($i = 1; $i <= $number_of_screens; $i++) {
eval("\$cap = \$node->field_screen_{$i}_caption[0][\"view\"];");
print $cap;

}

[Rik Wasmus]

On Tue, 27 Nov 2007 21:40:24 +0100, jj <jj********@gmail.comwrote:

Trying to understand the manual regarding variables to solve the
following.

I'm working with Drupal CMS and have a loop to retrieve values that
are normally fetched by using this variable: $node-

>field_screen_1_caption[0]['view']. The loop should run n times,

incrementing that number 1 so next variable is $node-

>field_screen_2_caption[0]['view'].

Here's what I'm trying in my loop to change that number in the
variable using $i:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = 'node->field_screen_'.$i.'_caption[0][\'view\']';
print $$cap;
}

Doesn't work obviously. Any suggestions for a PHP amateur.

echo $node->{'field_screen_'.$i.'_caption'}[0]['view']

It has some serious flaws in design if you have to use it like that though.
--
Rik Wasmus

[Kailash Nadh]

On Nov 27, 9:18 pm, jj <[e-mail]:

Excellent. Thanks, Kailash! I wouldn't have known what to look for.

;) np. You're welcome!

jj

eval() -http://php.net/eval

for ($i = 1; $i <= $number_of_screens; $i++) {
eval("\$cap = \$node->field_screen_{$i}_caption[0][\"view\"];");
print $cap;

}

--
Kailash Nadh | http://kailashnadh.name

[Michael Fesser]

..oO(jj)

>Excellent. Thanks, Kailash! I wouldn't have known what to look for.

Not really. Eval is evil.

What about using an array instead?

Micha

[Michael]

Kailash Nadh wrote:

On Nov 27, 8:40 pm, jj <[e-mail]:

>Trying to understand the manual regarding variables to solve the
following.

I'm working with Drupal CMS and have a loop to retrieve values that
are normally fetched by using this variable: $node->field_screen_1_caption[0]['view']. The loop should run n times,

incrementing that number 1 so next variable is $node-

>>field_screen_2_caption[0]['view'].

Here's what I'm trying in my loop to change that number in the
variable using $i:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = 'node->field_screen_'.$i.'_caption[0][\'view\']';
print $$cap;

}

Doesn't work obviously. Any suggestions for a PHP amateur.

Thanks,
jj

eval() - http://php.net/eval

for ($i = 1; $i <= $number_of_screens; $i++) {
eval("\$cap = \$node->field_screen_{$i}_caption[0][\"view\"];");
print $cap;
}

--
Kailash Nadh | http://kailashnadh.name

Ewww, eval really?

Variable Variables -
http://au.php.net/manual/en/language...s.variable.php
- is probably closer to what you want.

Example:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = '$node->field_screen_' . $i . '_caption[0][\'view\']';
print $$cap;
}

Should work! However I *strongly* suggest using an array.

- Michael

[Michael]

Michael wrote:

Kailash Nadh wrote:

>On Nov 27, 8:40 pm, jj <[e-mail]:

>>Trying to understand the manual regarding variables to solve the
following.

I'm working with Drupal CMS and have a loop to retrieve values that
are normally fetched by using this variable:
$node->field_screen_1_caption[0]['view']. The loop should run n times,

incrementing that number 1 so next variable is $node-

field_screen_2_caption[0]['view'].
Here's what I'm trying in my loop to change that number in the
variable using $i:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = 'node->field_screen_'.$i.'_caption[0][\'view\']';
print $$cap;

}

Doesn't work obviously. Any suggestions for a PHP amateur.

Thanks,
jj

eval() - http://php.net/eval

for ($i = 1; $i <= $number_of_screens; $i++) {
eval("\$cap = \$node->field_screen_{$i}_caption[0][\"view\"];");
print $cap;
}

--
Kailash Nadh | http://kailashnadh.name

Ewww, eval really?

Variable Variables -
http://au.php.net/manual/en/language...s.variable.php
- is probably closer to what you want.

Example:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = '$node->field_screen_' . $i . '_caption[0][\'view\']';
print $$cap;
}

Should work! However I *strongly* suggest using an array.

- Michael

Agh, whoops what i meant was...

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = '$node->field_screen_' . $i . '_caption';
print $$cap[0]['view'];
}

- Michael

[Norman Peelman]

jj wrote:

Trying to understand the manual regarding variables to solve the
following.

I'm working with Drupal CMS and have a loop to retrieve values that
are normally fetched by using this variable: $node-

>field_screen_1_caption[0]['view']. The loop should run n times,

incrementing that number 1 so next variable is $node-

>field_screen_2_caption[0]['view'].

Here's what I'm trying in my loop to change that number in the
variable using $i:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = 'node->field_screen_'.$i.'_caption[0][\'view\']';
print $$cap;
}

Doesn't work obviously. Any suggestions for a PHP amateur.

Thanks,
jj

As you can see by the replies there are many ways to do this... yet
another:

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = "node->field_screen_{$i}_caption[0]['view']";
echo $$cap;
}

Norm