PHP Error when configuring ROundMail

[willwac]

Check config files

main.inc.php:  OK
db.inc.php:  OK
Check if directories are writable

Roundcube may need to write/save files into these directories

temp/:  OK
logs/:  OK
Check DB config


PHP Error Message

Fatal error: Undefined class constant 'MYSQL_ATTR_FOUND_ROWS' in /home/a3361728/public_html/mail/program/lib/Roundcube/rcube_db_mysql.php on line 134

[SKaero]

What version of php is on your server?