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WordPress hook directory
postbox_classes_{$page}_{$id}

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 postbox_classes_{$page}_{$id}

This database has information for all major versions from WP 1.2.1 through 4.4.

Version File Line Type
3.2 wp-admin/includes/post.php 1080 View hook in source filter
3.3 wp-admin/includes/post.php 1002 View hook in source filter
3.4 wp-admin/includes/post.php 998 View hook in source filter
3.5 wp-admin/includes/post.php 969 View hook in source filter
3.6 wp-admin/includes/post.php 984 View hook in source filter
3.7 wp-admin/includes/post.php 1000 View hook in source filter
3.8 wp-admin/includes/post.php 1000 View hook in source filter
3.9 wp-admin/includes/post.php 1098 View hook in source filter
4.0 wp-admin/includes/post.php 1105 View hook in source filter
4.1 wp-admin/includes/post.php 1114 View hook in source filter
4.2 wp-admin/includes/post.php 1176 View hook in source filter
4.3 wp-admin/includes/post.php 1190 View hook in source filter
4.4 wp-admin/includes/post.php 1193 View hook in source filter

Related Hooks

We find related hooks using word stems. postbox_classes_{$page}_{$id} has 4 significant word stem(s): postbox, classes, page, id. Note that some of the hooks below may not appear in all versions of WP.