No, I think the author knows the issues behind this muting - you just need to be smart about how you apply it. In the case of filemtime, it appears the only fai

No, I think the author knows the issues behind this muting - you just need to be smart about how you apply it. In the case of filemtime, it appears the only failure condition is a file not existing so we can safely ignore the E_WARNING it emits; it wouldn't be sensible to apply this everywhere (I hadn't thought about the permissions case myself). The best/real solution is probably implementing flock so that it can issue real filesystem locks, rather than relying on a file resource.