Filters a specific option before its value is (maybe) serialized and updated.

The dynamic portion of the hook name, $option, refers to the option name.

$value mixed

The new, unserialized option value.

$old_value mixed

The old option value.

$option string

Option name.

This filter is applied to the option value before being saved to the database; this allows the overriding value to be stored. To use this filter, you will need to add filters for specific options names, such as “pre_update_option_foo” to filter the option “foo“.

File: wp-includes/option.php. View all references

$value = apply_filters( "pre_update_option_{$option}", $value, $old_value, $option );