WordPress 2.7.0 Hooks, Functions, Classes and Methods
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option_update_filter()

Refreshes the value of the allowed options list available via the ‘allowed_options’ hook.

plugins_api()

Retrieves plugin installer pages from the WordPress.org Plugins API.

post_class()

Displays the classes for the post container element.

post_preview()

Saves a draft or manually autosaves for the purpose of showing a post preview.