What naming standard do you use for variable names? PSR-1 mentions standards for class names (StudlyCaps) and method names (camelCase) but not plain variables. I’ve seen both of these styles used: $is_admin and $isAdmin. Which you do prefer and why?

Round 1: Online Test : Platform: HackerEarth  Duration: 60 minutes  Difficulty Level: Medium-Hard Details of Test/Modules: The format of the coding round […]

If someone connect an ethernet cable from one port of a router to another of its ports, will it cause a loop? […]