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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 |
|---|---|
| 4390 | * Filters the avatar URL. |
| 4391 | * |
| 4392 | * @since 4.2.0 |
| 4393 | * |
| 4394 | * @param string $url The URL of the avatar. |
| 4395 | * @param mixed $id_or_email The Gravatar to retrieve. Accepts a user ID, Gravatar MD5 hash, |
| 4396 | * user email, WP_User object, WP_Post object, or WP_Comment object. |
| 4397 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 4398 | */ |
| 4399 | $args['url'] = apply_filters( 'get_avatar_url', $url, $id_or_email, $args ); |
| 4400 | |
| 4401 | /** |
| 4402 | * Filters the avatar data. |
| 4403 | * |
| 4404 | * @since 4.2.0 |
| 4405 | * |
| 4406 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 4407 | * @param mixed $id_or_email The Gravatar to retrieve. Accepts a user ID, Gravatar MD5 hash, |
| 4408 | * user email, WP_User object, WP_Post object, or WP_Comment object. |