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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 |
|---|---|
| 4596 | |
| 4597 | /** |
| 4598 | * Filters the list of all found galleries in the given post. |
| 4599 | * |
| 4600 | * @since 3.6.0 |
| 4601 | * |
| 4602 | * @param array $galleries Associative array of all found post galleries. |
| 4603 | * @param WP_Post $post Post object. |
| 4604 | */ |
| 4605 | return apply_filters( 'get_post_galleries', $galleries, $post ); |
| 4606 | } |
| 4607 | |
| 4608 | /** |
| 4609 | * Check a specified post's content for gallery and, if present, return the first |
| 4610 | * |
| 4611 | * @since 3.6.0 |
| 4612 | * |
| 4613 | * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post. |
| 4614 | * @param bool $html Optional. Whether to return HTML or data. Default is true. |