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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 |
|---|---|
| 4423 | * Filters the avatar URL. |
| 4424 | * |
| 4425 | * @since 4.2.0 |
| 4426 | * |
| 4427 | * @param string $url The URL of the avatar. |
| 4428 | * @param mixed $id_or_email The avatar to retrieve. Accepts a user ID, Gravatar MD5 hash, |
| 4429 | * user email, WP_User object, WP_Post object, or WP_Comment object. |
| 4430 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 4431 | */ |
| 4432 | $args['url'] = apply_filters( 'get_avatar_url', $url, $id_or_email, $args ); |
| 4433 | |
| 4434 | /** |
| 4435 | * Filters the avatar data. |
| 4436 | * |
| 4437 | * @since 4.2.0 |
| 4438 | * |
| 4439 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 4440 | * @param mixed $id_or_email The avatar to retrieve. Accepts a user ID, Gravatar MD5 hash, |
| 4441 | * user email, WP_User object, WP_Post object, or WP_Comment object. |