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Important warning about variable hooks

Some hooks have variables in their names. For example, pre_${taxonomy}_$field and admin_head- both have variable names. In general, any hook that ends (or begins) with - or _, or contains a $, has a variable name. Since the syntax with which these variables are defined may change from version to version, this page may think that a hook is deprecated (or new) even if it is not. You can usually catch this sort of thing by comparing this hook to the list of "related hooks" below.

WordPress version history for {$per_page}

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

Version File Line Type
3.0 wp-admin/includes/post.php 897 View in context filter
3.1 wp-admin/includes/post.php 928 View in context filter
3.2 wp-admin/includes/post.php 957 View in context filter
3.3 wp-admin/includes/post.php 879 View in context filter
3.4 wp-admin/includes/post.php 874 View in context filter
3.5 wp-admin/includes/post.php 860 View in context filter
3.6 wp-admin/includes/post.php 875 View in context filter
3.7 wp-admin/includes/post.php 891 View in context filter
3.8 wp-admin/includes/post.php 891 View in context filter
3.9 wp-admin/includes/post.php 971 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. {$per_page} has 2 significant word stem(s): per, page. Note that some of the hooks below may not appear in all versions of WP.