Function _cfgOption

Convenience method to get the value of the array config variable by its key

Package: PHPLucidFrame\Core
Copyright: Copyright (c), PHPLucidFrame.
License: MIT License This source file is subject to the MIT license that is bundled with this source code in the file LICENSE
Author: Sithu sithu@phplucidframe.com
Located at lc.php

Parameters summary
`string`	`$name`	The config array variable name without prefix
`string`	`$key`	The key of the config array of which value to be retrieved

Return value summary
`mixed\|string\|null`	The value of a single column of the config array variable