listvariables
To list all the text and/or math variables which have been set earlier on a page, [listvariables] will display them all in name-value pairs.
[listvariables][name] = [value][/listvariables]Parameters
| Parameter | Description |
|---|---|
| Name | (Optional) The name of the variable to list. |
| Exact | (Optional) T(rue) or F(alse) whether to exactly match the name of the parameter or match any name that contains the "name" value. (Default value is true). |
| Type | (Optional) Text or Math. Default is to list variables of both types. Specify Text for Text variables only, Math for Math variables only. |
The following tags are available inside a [listvariables] context:
| Tag | Description |
|---|---|
| [name] | The name of the variable. |
| [value] | The value associated with the variable. |
| [index] | A number from 1 to the total number of variables, indicating this field's index position in the list |
| [secure] | Displays "T" if the variable is secure, "F" otherwise. |
| [break] | From v8.1, if the [listvariables] context sees the [break] tag while executing a loop, it will stop looping, once it finishes the current loop. Thus the [break] tag should only appear in a [showif] statement that is evaluated at the end (bottom) of the loop. |
This context is extremely useful to debug a page.
To display a list of all the text/math variables available, put a [listvariables] context into a template.
The following will list all the text/math variables available to a page:
[listvariables]
[index], [name] = [value]<br>
[/listvariables]The [listvariables] context has optional parameters in order to modify the list of text/math variables produced.
Example WebDNA code:
The following are the values of all the text/math variables with the name "shipping":
[listvariables name=shipping&exact=T]
[index], [name] = [value]<br>
[/listvariables]The following are the values of all the math variables:
[listvariables type=math]
[index], [name] = [value]<br>
[/listvariables]