A built-in template for PHP getter methods used, for example, when "Add getter and setter" quick fix is invoked.
Predefined variables will take the following values:
${STATIC}   If the field is static takes the value of "static" or empty string otherwise.
${GET_OR_IS}   get/is prefix. Evaluates to "is" if the field has a boolean type (type hint) or to "get" string otherwise.
${NAME}   Method name in camel caps style without "get" prefix with the first character capitalized. For example, field name "_my_field" is converted to "MyField"
${CLASS_NAME}   The name of containing class.
${RETURN_TYPE}   Contains return type hint if language level is PHP 7.0 or higher
${FIELD_NAME}   The original field name as is.
${TYPE_HINT}   The type hint of the field or empty string if not specified.
${DS}   Dollar sign, evaluates to a plain '$' character.