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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 |
|---|---|
| 13 | <div class="author-avatar"> |
| 14 | <?php |
| 15 | /** |
| 16 | * Filter the author bio avatar size. |
| 17 | * |
| 18 | * @since Twenty Fifteen 1.0 |
| 19 | * |
| 20 | * @param int $size The avatar height and width size in pixels. |
| 21 | */ |
| 22 | $author_bio_avatar_size = apply_filters( 'twentyfifteen_author_bio_avatar_size', 56 ); |
| 23 | |
| 24 | echo get_avatar( get_the_author_meta( 'user_email' ), $author_bio_avatar_size ); |
| 25 | ?> |
| 26 | </div><!-- .author-avatar --> |
| 27 | |
| 28 | <div class="author-description"> |
| 29 | <h3 class="author-title"><?php echo get_the_author(); ?></h3> |
| 30 | |
| 31 | <p class="author-bio"> |