Might want to check your /etc/php.ini and make sure you have the "extension=mysql.so" uncommented (restart Apache if you make a change). Also might want to check over the [MySQL] section. And to ...

If PHP's MySQL library supports it, you should be using bound variables. Gets rid of the SQL-injection worries.

The whole MySQL database creation script runs out of steam before it even starts. The main issue at hand in this scenario is an old dialect class that’s incompatible with the MySQL installation. A ...