Code completion result for source line:
testGuessingNullFunctio|n(null);
(QueryType=COMPLETION, prefixSearch=false, caseSensitive=true)
METHOD     testGuessingNullFunction($a)    [PUBLIC]   guessingNullReturnType.php

Documentation:

testGuessingNullFunction


Parameters:

 $aPHPDoc not found

Returns:

Type:null | int