Retreiving Variable Name over Value

[i3bargon]

On a form i have a couple form text field inputs that are named as follows and are dynamically created on the fly

group_22
group_1
group_54
center_77
center_44

Before the underscore is what type of meeting it is and after is the id number for it. On the left hand side of each text input field is a radio button. So whichever radio button is selected that respective text field is the one that gets updated.

In my script i know by other means that i need a group over a center or vice versa and i know what the id number will be. But i need to find some what to recall the value of that text field and i dont know how to recall the name of the variable.

For exampl in my script i know
id=54
type = group

So i want to retreive the value of the text field
$type_$id
To clarify $goup_54

But that doesnt work. do i need to escape $type_$id to get $group_54 wich is the name of the text field im trying to retrieve and it should have the value stored for whatever was entered their.

Thanks in advanced.

[Weedpacket]

1. It sounds as though you'd be better off using arrays rather than variable variables...

2. All the fields would be in the $POST[] array ($HTTP_POST_VARS[] pre PHP4.1); you can search through those arrays for keys that have suitable forms
   

3. If $id=4 and $group="center", then ${"$group_$id"} will be parsed as equivalent to $center_4, so there's a way of reconstructing the variable name. Loop through all the possible values of $group and $id, and see if the corresponding ${"$group_$id"} isset() or not.