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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 |
|---|---|
| 3808 | |
| 3809 | /** |
| 3810 | * Filters the list of all found galleries in the given post. |
| 3811 | * |
| 3812 | * @since 3.6.0 |
| 3813 | * |
| 3814 | * @param array $galleries Associative array of all found post galleries. |
| 3815 | * @param WP_Post $post Post object. |
| 3816 | */ |
| 3817 | return apply_filters( 'get_post_galleries', $galleries, $post ); |
| 3818 | } |
| 3819 | |
| 3820 | /** |
| 3821 | * Check a specified post's content for gallery and, if present, return the first |
| 3822 | * |
| 3823 | * @since 3.6.0 |
| 3824 | * |
| 3825 | * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post. |
| 3826 | * @param bool $html Optional. Whether to return HTML or data. Default is true. |