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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 2004 | |
| 2005 | if ( $updated ) { |
| 2006 | /** |
| 2007 | * Fires once a post has been added to the sticky list. |
| 2008 | * |
| 2009 | * @since 4.6.0 |
| 2010 | * |
| 2011 | * @param int $post_id ID of the post that was stuck. |
| 2012 | */ |
| 2013 | do_action( 'post_stuck', $post_id ); |
| 2014 | } |
| 2015 | } |
| 2016 | |
| 2017 | /** |
| 2018 | * Un-stick a post. |
| 2019 | * |
| 2020 | * Sticky posts should be displayed at the top of the front page. |
| 2021 | * |
| 2022 | * @since 2.7.0 |