sing the syntax '&lt;ParamName:RegExp&gt;'.
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When parsing a URL, a matching rule will extract the named parameters from the path info
and put them into the $_GET variable; when creating a URL, a matching rule will extract
the named parameters from $_GET and put them into the path info part of the created URL.
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If a pattern ends with '/*', it means additional GET parameters may be appended to the path
info part of the URL; otherwise, the GET parameters can only appear in the query string 