Core: add sniff to enforce the use of __DIR__ instead of dirname(__FILE__) #2137
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Related to previous efforts which already fixed all instances of this in WP Core.
The sniff from PHPCSExtra includes an auto-fixer for the issue.
Note: the sniff from PHPCSExtra also contains a check for nested
dirname()
function calls. This check is not (yet) enabled as the fix for this requires PHP 7.0+.Fixes #1954
Refs:
Related to WP Core tickets: