How does @var Config $config work?

[modifiedcontent]

Another dumb question; what am I supposed to do with the following in config.php:

Quote

/** @var Config $config */

/**
 * Allow core API variables to also be accessed as functions?
 *
 * Recommended. This enables API varibles like $pages to also be accessed as pages(),
 * as an example. And so on for most other core variables.
 *
 * Benefits are better type hinting, always in scope, and potentially shorter API calls.
 * See the file /wire/core/FunctionsAPI.php for details on these functions.
 *
 * @var bool
 *
 */
 

I have tried uncommenting '@var Config $config', but that breaks stuff. And what is '@var bool'?

[qtguru]

@ is not supported in PHP only in comments and sometimes PHPDoc, however your IDE also uses that to resolve $config to a Config class for Intellisense purposes. Check this link for more information

https://github.com/php-fig/fig-standards/blob/master/proposed/phpdoc.md

[gmclelland]

I think this might help you https://processwire.com/api/ref/functions/#pwapi-methods-Functions-API