Code completion result for source line:
$grandchildClass->testOnlyT|ag($param1, $param2);
(QueryType=COMPLETION, prefixSearch=false, caseSensitive=true)
METHOD     testOnlyTag($param1, $param2)   [PUBLIC]   GrandchildClass

Documentation:

testOnlyTag

testOnlyTag method of BaseClass.

testOnlyTag method description of BaseClass.

Parameters:

 string$param1param1 description of BaseClass
 int$param2param2 description of BaseClass