A built-in template for PHP class field doc comment.
Predefined variables will take the following values:
${NAME}   Field name.
${CLASS_NAME}   Class name.
${STATIC}   Takes the value of "static" if the field is static or an empty string otherwise.
${NAMESPACE}   A fully qualified name of the field namespace without a leading slash.
${TYPE_TAG}   Depending on code style settings takes a value of @var or @type (See Code Style|PHP|PhpDoc|Generated type tag).
${DS}   Dollar sign, evaluates to a plain '$' character.
${CARET}   Marks a position where the caret must be moved after the comment is added.