mars@i mars $ f=$(/usr/bin/php-config --extension-dir)
mars@i mars $ echo $f
//usr/lib/extensions/no-debug-non-zts-20041030
mars@i mars $ ls -lR $f
//usr/lib/extensions/no-debug-non-zts-20041030:
total 2274
-rwxr-xr-x  1 root root   42792 Jan  4 18:27 dba.so
-rwxr-xr-x  1 root root   12408 Jan  4 18:27 fam.so
-rwxr-xr-x  1 root root   13336 Jan  4 18:27 gettext.so
-rwxr-xr-x  1 root root  136700 Jan  4 18:27 imap.a
-rwxr-xr-x  1 root root   46296 Jan  4 18:27 ldap.so
-rwxr-xr-x  1 root root 1771720 Jan  4 18:27 mbstring.so
-rwxr-xr-x  1 root root   37688 Jan  4 18:27 mcrypt.so
-rwxr-xr-x  1 root root   51768 Jan  4 18:27 mysql.so
-rwxr-xr-x  1 root root   83632 Jan  4 18:27 ncurses.so
-rwxr-xr-x  1 root root   77736 Jan  4 18:27 openssl.so
-rwxr-xr-x  1 root root   26056 Jan  4 18:27 zlib.so