Dangling PhpDoc comment

[kalessil]

Same as for Java:

Reports dangling Javadoc comments. Javadoc comment are dangling if they don't belong 
to any class, method or field. For example a Javadoc comment in between method declarations
 that have their own javadoc comments. 

[funivan]

What about redundant doc comment?

/**
 * @param string $name
 */
function show(string $name) : void {
  echo trim($name);
}

I think this comment can be safely dropped out. It does not provide any new information.