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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 |
|---|---|
| 4562 | * Filters the avatar URL. |
| 4563 | * |
| 4564 | * @since 4.2.0 |
| 4565 | * |
| 4566 | * @param string $url The URL of the avatar. |
| 4567 | * @param mixed $id_or_email The avatar to retrieve. Accepts a user ID, Gravatar MD5 hash, |
| 4568 | * user email, WP_User object, WP_Post object, or WP_Comment object. |
| 4569 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 4570 | */ |
| 4571 | $args['url'] = apply_filters( 'get_avatar_url', $url, $id_or_email, $args ); |
| 4572 | |
| 4573 | /** |
| 4574 | * Filters the avatar data. |
| 4575 | * |
| 4576 | * @since 4.2.0 |
| 4577 | * |
| 4578 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 4579 | * @param mixed $id_or_email The avatar to retrieve. Accepts a user ID, Gravatar MD5 hash, |
| 4580 | * user email, WP_User object, WP_Post object, or WP_Comment object. |