Using loop to assign variables

unmash

Hi All;

I have a quick question that I was wondering if someone could answer.

I have a form that sends back all the fields in a table to another php module using a loop that assignes the current table name to the name tag in a form
e.g. <td><input type=text name=current_name_returned_by_loop></td>.

On the new php module which is called by this form, if I then hardcode the dollar sign before the field name i.e. if I type $id, I get the correct value i.e. the value of id, but if I concatenate the $ in i.e $new_id ="'$"."id"."'", then when I run it, I do not get the value of $id, but rather '$id' as a string.

Is there any way aorund this type of behaviour?? I really dont want to be forced to hardcode every filed name in my php module with a $ in order to retrieve the values. A for loop concatenating the $ sign to the field names would be a much easier way to retrieve the values.

Thanking you all in advance.

Uriel

Anon

I think you're looking for the $$ system of assigning values by association. This allows you to assign a value to the name specified by the string.

for example:

$name = "fatelvis";
$$name = "rocks"; // assigns "rocks" to $fatelvis by association
echo $name; // prints "fatelvis"
echo $$name; //prints "rocks"
echo $fatelvis; // prints "rocks"

To answer your question, I think you want this:

$new_id = $$id

instead of this:

$new_id = "'$"."id"."'"

you might want to do something like this:

$basename = "form_value_";

for ($i=0;$i++;$i<10) {
$varname = $basename.$i;
$current = $$varname;
echo $current;
}

That would echo $form_value_0 thru $form_value_9.

I hope that helps.

rrijnders

http://www.phpbuilder.com/manual/language.variables.variable.php

bdbush

I'm not sure that I understand your question, but if this doesn't answer then the answer that FatElvis gave should.

I'm not sure what you are doing with:
$new_id = "'$" . "id" . "'";

But if you are trying to set $new_id to the value of $id, it is simply:

$new_id = $id;

--brian

unmash

Thanks for the help!!!
It works!! :-)
Uriel

unmash

Thanks as well. Fat Elvis' suggestion worked. I do appreciate the help.
Thanks once again
Uriel