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Applied to the category list generated by the get_categories function (which is in turn used by many other functions). Filter function arguments: category list, get_categories options list.

This description was scraped automatically from the WordPress filter reference or action reference. If it looks like this is the wrong description, please tell me so I can fix my code.

WordPress version history for get_categories

This database has information for all major versions from WP 1.2.1 through 6.2.

Version File Line Type
2.1 wp-includes/category.php 134 View in context filter
2.2 wp-includes/category.php 36 View in context filter
2.2 wp-includes/category.php 137 View in context filter

Important warning!

This hook does not occur in the most recent version of WordPress (6.2). Do not use it. It is deprecated. You should look at the list of "related hooks" below to see if you can figure out what replaced it.

Related Hooks

We find related hooks using word stems. get_categories has 1 significant word stem(s): categories. Note that some of the hooks below may not appear in all versions of WP.