Description: ------------ This use case don't recognized right. Also the PSR-2 don't contain recommendations (descriptions) about use statements for traits, so the following code must be right too: use TProperties, TReflected; // it is a valid code Test script: --------------- <?php namespace Myak\Base; class Object implements IObject { use TProperties; use TReflected { TReflected::reflect insteadof TProperties; } public function __toString() { return $this->getHash(); } public function getHash() { return spl_object_hash($this); } } Expected result: ---------------- File is valid. Actual result: -------------- FILE: I:\project\myak\framework\src\lib\Myak\Base\Object.php -------------------------------------------------------------------------------- FOUND 4 ERROR(S) AFFECTING 3 LINE(S) -------------------------------------------------------------------------------- 8 | ERROR | There must be one blank line after the last USE statement; 0 | | found; 9 | ERROR | Constants must be uppercase; expected REFLECT but found reflect 9 | ERROR | Constants must be uppercase; expected TPROPERTIES but found | | TProperties --------------------------------------------------------------------------------

Fix committed to github repo: https://github.com/squizlabs/PHP_CodeSniffer/commit/cc0c8bfdeb47c692485254635cc 1ff1265660e7e