action-and-filter-reference.md

Actions and Filters

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Since each Option is an individual database entry, you can easily target them using wildcard action and filter hooks. I have listed them here with links to official documentation on their use. Replace {$option} with the 'id' of a field you want to use.

Table of Contents

1. Actions
2. Filters

Actions

1. "add_option_{$option}"
   "Fires after a specific option has been added."
   https://developer.wordpress.org/reference/hooks/add_option_option/
2. "update_option_{$option}"
   "Fires after the value of a specific option has been successfully updated." https://developer.wordpress.org/reference/hooks/update_option_option/
3. "delete_option_{$option}"
   "Fires after a specific option has been deleted." https://developer.wordpress.org/reference/hooks/delete_option_option/

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Filters

1. "option_{$option}"
   "Filters the value of an existing option. [...] This hook allows you to filter any option after database lookup."
   https://developer.wordpress.org/reference/hooks/option_option/
2. "pre_option_{$option}"
   "Filters the value of an existing option before it is retrieved. [...] Returning a truthy value from the filter will effectively short-circuit retrieval and return the passed value instead."
   https://developer.wordpress.org/reference/hooks/pre_option_option/
3. "pre_update_option_{$option}"
   "Filters a specific option before its value is (maybe) serialized and updated."
   https://developer.wordpress.org/reference/hooks/pre_update_option_option/

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