Error establishing a database connection

Warning: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/extensions/no-debug-non-zts-20090626/php_gd2.dll' - /usr/local/lib/php/extensions/no-debug-non-zts-20090626/php_gd2.dll: cannot open shared object file: No such file or directory in Unknown on line 0