web_request->param

Returns query or post parameter values.

Target member

Signature

1web_request->param(name::string, joiner= ?)

Returns query or post parameter values.

web_request->param is called with member syntax on a receiver value. web_request->param belongs at the request or response boundary. Treat visitor input as untrusted, validate before use, and encode values before writing them into HTML.

Parameters

name: Required value of type string. Supply name positionally unless the signature shows a keyword form.
joiner: Optional value. Supply joiner positionally unless the signature shows a keyword form.

Examples

Basic call

1web_request->param('q')

The example belongs near a request or response boundary; validate visitor input before trusting it.