When configured with open_basedir a PHP Warning is generated each time readability is determined:
is_readable(): open_basedir restriction in effect. File(/dev/urandom) is not within the allowed path(s): (...) in vendor/kunststube/csrfp/Kunststube/CSRFP/CryptoProvider.php on line 23
This change should suppress these warnings, which should be fine since there is a fallback to using other sources for entropy.
Suppress warnings from is_readable() when using open_basedir configur…
Very reasonable, thanks!