Do not use, deprecated.

Adds a placeholder escape string, to escape anything that resembles a printf() placeholder.

Wraps errors in a nice header and footer and dies.

Checks if a string is ASCII.

Checks that the connection to the database is still up. If not, try to reconnect.

Determines whether MySQL database is at least the required minimum version.

Checks if the query is accessing a collation considered safe on the current version of MySQL.

Closes the current database connection.

Connects to and selects database.

Retrieves full database server information.