I see, is_file not work properly on specifical file in /dev (linux)
look :
root@boofh:/data# php -r "var_dump(is_file('/dev/core'));"
bool(true)
root@boofh:/data# php -r "var_dump(is_file('/proc/kcore'));"
bool(true)
root@boofh:/data# ls -alh /proc/kcore
-r-------- 1 root root 128T Aug 13 18:39 /proc/kcore
OR FIND do not detect regular file.
root@boofh:/data# find /dev/ -type f
root@boofh:/data#
// version of php :
root@boofh:/data# php -v
PHP 5.4.4-14+deb7u3 (cli) (built: Jul 17 2013 14:54:08)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies
