problem with phpMyAdmin port

[fbsd]

Just downloaded phpMyAdmin port make files on 6.1 system and ran
"make install clear".

Already had php5 and mysql5 previously installed and working.

The phpMyAdmin port installed fine.

Problem is the phpMyAdmin directory was installed as /www/phpMyAdmin
and it should have been /usr/local/www/phpMyAdmin.
This looks to me like port error to me.

I tried to do work around by cp -R /www/phpMyAdmin /usr/local/www/
This copied all the files and subdirectories ok.

When I try to run phpMyAdmin I get this error
Fatal error: Call to undefined function preg_replace() in
/usr/local/www/phpMyAdmin/libraries/sanitizing.lib.php on line 37

This again looks like another port error.

Is the phpMyAdmin port broken????