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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 |
|---|---|
| 3043 | /** |
| 3044 | * Filter the first-found post gallery. |
| 3045 | * |
| 3046 | * @since 3.6.0 |
| 3047 | * |
| 3048 | * @param array $gallery The first-found post gallery. |
| 3049 | * @param int|WP_Post $post Post ID or object. |
| 3050 | * @param array $galleries Associative array of all found post galleries. |
| 3051 | */ |
| 3052 | return apply_filters( 'get_post_gallery', $gallery, $post, $galleries ); |
| 3053 | } |
| 3054 | |
| 3055 | /** |
| 3056 | * Retrieve the image srcs from galleries from a post's content, if present |
| 3057 | * |
| 3058 | * @since 3.6.0 |
| 3059 | * |
| 3060 | * @param mixed $post Optional. Post ID or object. |
| 3061 | * @return array A list of lists, each containing image srcs parsed |