Filters the column charset value before the DB is checked.

Passing a non-null value to the filter will short-circuit checking the DB for the charset, returning that value instead.

$charset string|null

The character set to use. Default null.

$table string

The name of the table being checked.

$column string

The name of the column being checked.

File: wp-includes/class-wpdb.php. View all references

$charset = apply_filters( 'pre_get_col_charset', null, $table, $column );