Is there a PHP unused code analyzer?

Question

PHP

Hello. I got a project in which the developers did not remove the old code and did not mark it as depricated. It's hard to figure out what's really relevant and what's not.
Is there a good code analyzer to detect unnecessary code? There is a wonderful Find Usage in phpStorm, but it does not give a picture as a whole: when deleting some method, you have to go through all the others again.
Maybe there is some such analyzer?
Thanks in advance!

Answer 1

PHP Dead Code Detector : https://github.com/sebastianbergmann/phpdcd

Answer 2

try running it through phpdepend or phpmetrics. These are very useful tools for analyzing code and finding "interesting" places.