### URLPARAM\{"name"\} -- get value of a URL parameter - Returns the value of a URL parameter. - Syntax: `%URLPARAM{"name"}%` - Supported parameters:
Parameter: Description: Default:
"name" The name of a URL parameter required
default="..." Default value in case parameter is empty or missing empty string
newline="<br />" Convert newlines in textarea to other delimiters no conversion
encode="entity" Encode special characters into HTML entities. See [[Main/WebHome#VarENCODE]] for more details. no encoding
encode="url" Encode special characters for URL parameter use, like a double quote into %22 no encoding
encode="quote" Escape double quotes with backslashes (\"), does not change other characters; required when feeding URL parameters into other TWiki variables no encoding
multiple="on" %BR% multiple="[[$item]]" If set, gets all selected elements of a <select multiple="multiple"> tag. A format can be specified, with $item indicating the element, e.g. multiple="Option: $item" first element
separator=", " Separator between multiple selections. Only relevant if multiple is specified "\n" (new line)
- Example: `%URLPARAM{"skin"}%` returns `print` for a `.../view/%WEB%/%INCLUDINGTOPIC%?skin=print` URL - **_%X% Note:_** URL parameters passed into HTML form fields must be entity [[ENCODEd|Main/WebHome#VarENCODE]]. - **_%X% Note:_** Double quotes in URL parameters must be escaped when passed into other TWiki variables.%BR% Example: `%SEARCH{ "%URLPARAM{ "search" encode="quotes" }%" noheader="on" }%` - **_%X% Note:_** When used in a template topic, this variable will be expanded when the template is used to create a new topic. See [[TWikiTemplates#TemplateTopicsVars]] for details. - **_%X% Note:_** There is a risk that this variable could be misused for cross-site scripting. - Related: [[ENCODE|Main/WebHome#VarENCODE]], [[SEARCH|Main/WebHome#VarSEARCH]], [[FormattedSearch]], [[QUERYSTRING|Main/WebHome#VarQUERYSTRING]]