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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.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 3826 | * |
| 3827 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 3828 | * @param mixed $id_or_email The Gravatar to retrieve. Accepts a user_id, gravatar md5 hash, |
| 3829 | * user email, WP_User object, WP_Post object, or WP_Comment object. |
| 3830 | */ |
| 3831 | $args = apply_filters( 'pre_get_avatar_data', $args, $id_or_email ); |
| 3832 | |
| 3833 | if ( isset( $args['url'] ) && ! is_null( $args['url'] ) ) { |
| 3834 | /** This filter is documented in wp-includes/link-template.php */ |
| 3835 | return apply_filters( 'get_avatar_data', $args, $id_or_email ); |
| 3836 | } |
| 3837 | |
| 3838 | $email_hash = ''; |
| 3839 | $user = $email = false; |
| 3840 | |
| 3841 | if ( is_object( $id_or_email ) && isset( $id_or_email->comment_ID ) ) { |
| 3842 | $id_or_email = get_comment( $id_or_email ); |
| 3843 | } |
| 3844 | |
| Line | Code |
| 3865 | * |
| 3866 | * @since 3.0.0 |
| 3867 | * |
| 3868 | * @param array $types An array of content types. Default only contains 'comment'. |
| 3869 | */ |
| 3870 | $allowed_comment_types = apply_filters( 'get_avatar_comment_types', array( 'comment' ) ); |
| 3871 | if ( ! empty( $id_or_email->comment_type ) && ! in_array( $id_or_email->comment_type, (array) $allowed_comment_types ) ) { |
| 3872 | $args['url'] = false; |
| 3873 | /** This filter is documented in wp-includes/link-template.php */ |
| 3874 | return apply_filters( 'get_avatar_data', $args, $id_or_email ); |
| 3875 | } |
| 3876 | |
| 3877 | if ( ! empty( $id_or_email->user_id ) ) { |
| 3878 | $user = get_user_by( 'id', (int) $id_or_email->user_id ); |
| 3879 | } |
| 3880 | if ( ( ! $user || is_wp_error( $user ) ) && ! empty( $id_or_email->comment_author_email ) ) { |
| 3881 | $email = $id_or_email->comment_author_email; |
| 3882 | } |
| 3883 | } |
| Line | Code |
| 3932 | /** |
| 3933 | * Filter the avatar data. |
| 3934 | * |
| 3935 | * @since 4.2.0 |
| 3936 | * |
| 3937 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 3938 | * @param mixed $id_or_email The Gravatar to retrieve. Accepts a user_id, gravatar md5 hash, |
| 3939 | * user email, WP_User object, WP_Post object, or WP_Comment object. |
| 3940 | */ |
| 3941 | return apply_filters( 'get_avatar_data', $args, $id_or_email ); |
| 3942 | } |
| 3943 | |