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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 |
---|---|
3577 | * @since 4.2.0 |
3578 | * |
3579 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
3580 | * @param int|object|string $id_or_email A user ID, email address, or comment object. |
3581 | */ |
3582 | $args = apply_filters( 'pre_get_avatar_data', $args, $id_or_email ); |
3583 |
|
3584 | if ( isset( $args['url'] ) && ! is_null( $args['url'] ) ) { |
3585 | /** This filter is documented in wp-includes/link-template.php */ |
3586 | return apply_filters( 'get_avatar_data', $args, $id_or_email ); |
3587 | } |
3588 |
|
3589 | $email_hash = ''; |
3590 | $user = $email = false; |
3591 |
|
3592 | // Process the user identifier. |
3593 | if ( is_numeric( $id_or_email ) ) { |
3594 | $user = get_user_by( 'id', absint( $id_or_email ) ); |
3595 | } elseif ( is_string( $id_or_email ) ) { |
Line | Code |
3614 | * |
3615 | * @since 3.0.0 |
3616 | * |
3617 | * @param array $types An array of content types. Default only contains 'comment'. |
3618 | */ |
3619 | $allowed_comment_types = apply_filters( 'get_avatar_comment_types', array( 'comment' ) ); |
3620 | if ( ! empty( $id_or_email->comment_type ) && ! in_array( $id_or_email->comment_type, (array) $allowed_comment_types ) ) { |
3621 | $args['url'] = false; |
3622 | /** This filter is documented in wp-includes/link-template.php */ |
3623 | return apply_filters( 'get_avatar_data', $args, $id_or_email ); |
3624 | } |
3625 |
|
3626 | if ( ! empty( $id_or_email->user_id ) ) { |
3627 | $user = get_user_by( 'id', (int) $id_or_email->user_id ); |
3628 | } |
3629 | if ( ( ! $user || is_wp_error( $user ) ) && ! empty( $id_or_email->comment_author_email ) ) { |
3630 | $email = $id_or_email->comment_author_email; |
3631 | } |
3632 | } |
Line | Code |
3679 |
|
3680 | /** |
3681 | * Filter the avatar data. |
3682 | * |
3683 | * @since 4.2.0 |
3684 | * |
3685 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
3686 | * @param int|object|string $id_or_email A user ID, email address, or comment object. |
3687 | */ |
3688 | return apply_filters( 'get_avatar_data', $args, $id_or_email ); |
3689 | } |
3690 |
|