Selecting entire variable with double click

Question

In PhpStorm, when you double click on a variable, say $_helloWorld, it just selects a part of the variable. For example, when you double click on World

Answer 1

For me, PhpStorm on Linux will only select entire variables on double click if I have the option:

File | Settings | Editor | General

Honor "CamelHumps" word settings when selecting using double click

turned off. See documentation here.