Using the following rules and PHP, PHPCBF makes an error during correction.

<rule ref="Squiz.Strings.EchoedStrings" /> <rule ref="Squiz.WhiteSpace.SemicolonSpacing" />

echo($y) ; // becomes... echo $y);

Modifying EchoedStringsSniff.php#L67 and including T_WHITESPACE solves the problem.

// with code extended echo $y;