<?php

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/**

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* Comment template functions

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*

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* These functions are meant to live inside of the WordPress loop.

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*

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* @package WordPress

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* @subpackage Template

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*/

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/**

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* Retrieves the author of the current comment.

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*

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* If the comment has an empty comment_author field, then 'Anonymous' person is

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* assumed.

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*

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* @since 1.5.0

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to retrieve the author.

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* Default current comment.

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* @return string The comment author

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*/

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function get_comment_author( $comment_ID = 0 ) {

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$comment = get_comment( $comment_ID );

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if ( empty( $comment->comment_author ) ) {

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$user = $comment->user_id ? get_userdata( $comment->user_id ) : false;

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if ( $user ) {

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$author = $user->display_name;

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} else {

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$author = __( 'Anonymous' );

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}

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} else {

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$author = $comment->comment_author;

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}

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/**

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* Filters the returned comment author name.

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*

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* @since 1.5.0

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* @since 4.1.0 The `$comment_ID` and `$comment` parameters were added.

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*

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* @param string $author The comment author's username.

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* @param int $comment_ID The comment ID.

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* @param WP_Comment $comment The comment object.

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*/

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return apply_filters( 'get_comment_author', $author, $comment->comment_ID, $comment );

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}

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/**

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* Displays the author of the current comment.

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*

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* @since 0.71

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to print the author.

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* Default current comment.

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*/

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function comment_author( $comment_ID = 0 ) {

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$comment = get_comment( $comment_ID );

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$author = get_comment_author( $comment );

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/**

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* Filters the comment author's name for display.

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*

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* @since 1.2.0

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* @since 4.1.0 The `$comment_ID` parameter was added.

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*

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* @param string $author The comment author's username.

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* @param int $comment_ID The comment ID.

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*/

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echo apply_filters( 'comment_author', $author, $comment->comment_ID );

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}

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/**

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* Retrieves the email of the author of the current comment.

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*

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* @since 1.5.0

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to get the author's email.

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* Default current comment.

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* @return string The current comment author's email

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*/

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function get_comment_author_email( $comment_ID = 0 ) {

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$comment = get_comment( $comment_ID );

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/**

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* Filters the comment author's returned email address.

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*

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* @since 1.5.0

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* @since 4.1.0 The `$comment_ID` and `$comment` parameters were added.

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*

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* @param string $comment_author_email The comment author's email address.

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* @param int $comment_ID The comment ID.

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* @param WP_Comment $comment The comment object.

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*/

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return apply_filters( 'get_comment_author_email', $comment->comment_author_email, $comment->comment_ID, $comment );

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}

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/**

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* Displays the email of the author of the current global $comment.

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*

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* Care should be taken to protect the email address and assure that email

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* harvesters do not capture your commenter's email address. Most assume that

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* their email address will not appear in raw form on the site. Doing so will

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* enable anyone, including those that people don't want to get the email

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* address and use it for their own means good and bad.

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*

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* @since 0.71

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to print the author's email.

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* Default current comment.

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*/

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function comment_author_email( $comment_ID = 0 ) {

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$comment = get_comment( $comment_ID );

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$author_email = get_comment_author_email( $comment );

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/**

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* Filters the comment author's email for display.

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*

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* @since 1.2.0

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* @since 4.1.0 The `$comment_ID` parameter was added.

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*

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* @param string $author_email The comment author's email address.

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* @param int $comment_ID The comment ID.

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*/

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echo apply_filters( 'author_email', $author_email, $comment->comment_ID );

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}

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/**

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* Displays the HTML email link to the author of the current comment.

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*

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* Care should be taken to protect the email address and assure that email

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* harvesters do not capture your commenter's email address. Most assume that

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* their email address will not appear in raw form on the site. Doing so will

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* enable anyone, including those that people don't want to get the email

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* address and use it for their own means good and bad.

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*

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* @since 0.71

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* @since 4.6.0 Added the `$comment` parameter.

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*

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* @param string $linktext Optional. Text to display instead of the comment author's email address.

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* Default empty.

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* @param string $before Optional. Text or HTML to display before the email link. Default empty.

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* @param string $after Optional. Text or HTML to display after the email link. Default empty.

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* @param int|WP_Comment $comment Optional. Comment ID or WP_Comment object. Default is the current comment.

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*/

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function comment_author_email_link( $linktext = '', $before = '', $after = '', $comment = null ) {

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$link = get_comment_author_email_link( $linktext, $before, $after, $comment );

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if ( $link ) {

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echo $link;

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}

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}

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/**

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* Returns the HTML email link to the author of the current comment.

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*

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* Care should be taken to protect the email address and assure that email

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* harvesters do not capture your commenter's email address. Most assume that

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* their email address will not appear in raw form on the site. Doing so will

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* enable anyone, including those that people don't want to get the email

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* address and use it for their own means good and bad.

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*

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* @since 2.7.0

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* @since 4.6.0 Added the `$comment` parameter.

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*

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* @param string $linktext Optional. Text to display instead of the comment author's email address.

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* Default empty.

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* @param string $before Optional. Text or HTML to display before the email link. Default empty.

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* @param string $after Optional. Text or HTML to display after the email link. Default empty.

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* @param int|WP_Comment $comment Optional. Comment ID or WP_Comment object. Default is the current comment.

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* @return string HTML markup for the comment author email link. By default, the email address is obfuscated

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* via the {@see 'comment_email'} filter with antispambot().

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*/

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function get_comment_author_email_link( $linktext = '', $before = '', $after = '', $comment = null ) {

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$comment = get_comment( $comment );

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/**

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* Filters the comment author's email for display.

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*

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* Care should be taken to protect the email address and assure that email

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* harvesters do not capture your commenter's email address.

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*

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* @since 1.2.0

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* @since 4.1.0 The `$comment` parameter was added.

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*

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* @param string $comment_author_email The comment author's email address.

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* @param WP_Comment $comment The comment object.

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*/

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$email = apply_filters( 'comment_email', $comment->comment_author_email, $comment );

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if ( ( ! empty( $email ) ) && ( '@' !== $email ) ) {

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$display = ( '' !== $linktext ) ? $linktext : $email;

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$return = $before;

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$return .= sprintf( '<a href="%1$s">%2$s</a>', esc_url( 'mailto:' . $email ), esc_html( $display ) );

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$return .= $after;

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return $return;

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} else {

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return '';

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}

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}

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/**

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* Retrieves the HTML link to the URL of the author of the current comment.

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*

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* Both get_comment_author_url() and get_comment_author() rely on get_comment(),

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* which falls back to the global comment variable if the $comment_ID argument is empty.

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*

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* @since 1.5.0

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to get the author's link.

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* Default current comment.

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* @return string The comment author name or HTML link for author's URL.

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*/

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function get_comment_author_link( $comment_ID = 0 ) {

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$comment = get_comment( $comment_ID );

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$url = get_comment_author_url( $comment );

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$author = get_comment_author( $comment );

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if ( empty( $url ) || 'http://' === $url ) {

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$return = $author;

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} else {

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$return = "<a href='$url' rel='external nofollow ugc' class='url'>$author</a>";

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}

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/**

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* Filters the comment author's link for display.

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*

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* @since 1.5.0

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* @since 4.1.0 The `$author` and `$comment_ID` parameters were added.

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*

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* @param string $return The HTML-formatted comment author link.

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* Empty for an invalid URL.

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* @param string $author The comment author's username.

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* @param int $comment_ID The comment ID.

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*/

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return apply_filters( 'get_comment_author_link', $return, $author, $comment->comment_ID );

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}

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/**

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* Displays the HTML link to the URL of the author of the current comment.

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*

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* @since 0.71

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to print the author's link.

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* Default current comment.

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*/

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function comment_author_link( $comment_ID = 0 ) {

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echo get_comment_author_link( $comment_ID );

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}

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/**

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* Retrieve the IP address of the author of the current comment.

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*

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* @since 1.5.0

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to get the author's IP address.

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* Default current comment.

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* @return string Comment author's IP address.

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*/

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function get_comment_author_IP( $comment_ID = 0 ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid

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$comment = get_comment( $comment_ID );

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/**

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* Filters the comment author's returned IP address.

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*

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* @since 1.5.0

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* @since 4.1.0 The `$comment_ID` and `$comment` parameters were added.

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*

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* @param string $comment_author_IP The comment author's IP address.

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* @param int $comment_ID The comment ID.

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* @param WP_Comment $comment The comment object.

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*/

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return apply_filters( 'get_comment_author_IP', $comment->comment_author_IP, $comment->comment_ID, $comment ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

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}

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/**

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* Displays the IP address of the author of the current comment.

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*

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* @since 0.71

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to print the author's IP address.

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* Default current comment.

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*/

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function comment_author_IP( $comment_ID = 0 ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid

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echo esc_html( get_comment_author_IP( $comment_ID ) );

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}

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/**

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* Retrieves the URL of the author of the current comment, not linked.

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*

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* @since 1.5.0

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to get the author's URL.

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* Default current comment.

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* @return string Comment author URL, if provided, an empty string otherwise.

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*/

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function get_comment_author_url( $comment_ID = 0 ) {

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$comment = get_comment( $comment_ID );

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$url = '';

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$id = 0;

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if ( ! empty( $comment ) ) {

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$author_url = ( 'http://' === $comment->comment_author_url ) ? '' : $comment->comment_author_url;

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$url = esc_url( $author_url, array( 'http', 'https' ) );

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$id = $comment->comment_ID;

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}

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/**

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* Filters the comment author's URL.

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*

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* @since 1.5.0

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* @since 4.1.0 The `$comment_ID` and `$comment` parameters were added.

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*

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* @param string $url The comment author's URL.

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* @param int $comment_ID The comment ID.

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* @param WP_Comment $comment The comment object.

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*/

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return apply_filters( 'get_comment_author_url', $url, $id, $comment );

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}

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/**

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* Displays the URL of the author of the current comment, not linked.

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*

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* @since 0.71

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* @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.

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*

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* @param int|WP_Comment $comment_ID Optional. WP_Comment or the ID of the comment for which to print the author's URL.

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* Default current comment.

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*/

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function comment_author_url( $comment_ID = 0 ) {

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$comment = get_comment( $comment_ID );

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$author_url = get_comment_author_url( $comment );

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/**

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* Filters the comment author's URL for display.

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*

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* @since 1.2.0

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* @since 4.1.0 The `$comment_ID` parameter was added.

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*

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* @param string $author_url The comment author's URL.

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* @param int $comment_ID The comment ID.

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*/

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echo apply_filters( 'comment_url', $author_url, $comment->comment_ID );

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}

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/**

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* Retrieves the HTML link of the URL of the author of the current comment.

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*

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* $linktext parameter is only used if the URL does not exist for the comment

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* author. If the URL does exist then the URL will be used and the $linktext

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* will be ignored.

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*

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* Encapsulate the HTML link between the $before and $after. So it will appear

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* in the order of $before, link, and finally $after.

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*

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* @since 1.5.0

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* @since 4.6.0 Added the `$comment` parameter.

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*

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* @param string $linktext Optional. The text to display instead of the comment

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* author's email address. Default empty.

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* @param string $before Optional. The text or HTML to display before the email link.

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* Default empty.

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* @param string $after Optional. The text or HTML to display after the email link.

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* Default empty.

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* @param int|WP_Comment $comment Optional. Comment ID or WP_Comment object.

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* Default is the current comment.

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* @return string The HTML link between the $before and $after parameters.

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*/

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function get_comment_author_url_link( $linktext = '', $before = '', $after = '', $comment = 0 ) {

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$url = get_comment_author_url( $comment );

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$display = ( '' !== $linktext ) ? $linktext : $url;

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$display = str_replace( 'http://www.', '', $display );

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$display = str_replace( 'http://', '', $display );

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if ( '/' === substr( $display, -1 ) ) {

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$display = substr( $display, 0, -1 );

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}

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$return = "$before<a href='$url' rel='external'>$display</a>$after";

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/**

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* Filters the comment author's returned URL link.

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*

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* @since 1.5.0

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*

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* @param string $return The HTML-formatted comment author URL link.

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*/

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return apply_filters( 'get_comment_author_url_link', $return );

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}

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/**

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* Displays the HTML link of the URL of the author of the current comment.

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*

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* @since 0.71

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* @since 4.6.0 Added the `$comment` parameter.

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*

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* @param string $linktext Optional. Text to display instead of the comment author's

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* email address. Default empty.

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* @param string $before Optional. Text or HTML to display before the email link.

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* Default empty.

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* @param string $after Optional. Text or HTML to display after the email link.

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* Default empty.

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* @param int|WP_Comment $comment Optional. Comment ID or WP_Comment object.

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* Default is the current comment.

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*/

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function comment_author_url_link( $linktext = '', $before = '', $after = '', $comment = 0 ) {

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echo get_comment_author_url_link( $linktext, $before, $after, $comment );

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}

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/**

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* Generates semantic classes for each comment element.

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*

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* @since 2.7.0

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* @since 4.4.0 Added the ability for `$comment` to also accept a WP_Comment object.

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*

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* @param string|string[] $class Optional. One or more classes to add to the class list.

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* Default empty.

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* @param int|WP_Comment $comment Comment ID or WP_Comment object. Default current comment.

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* @param int|WP_Post $post_id Post ID or WP_Post object. Default current post.

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* @param bool $echo Optional. Whether to echo or return the output.

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* Default true.

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* @return void|string Void if `$echo` argument is true, comment classes if `$echo` is false.

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*/

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function comment_class( $class = '', $comment = null, $post_id = null, $echo = true ) {

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// Separates classes with a single space, collates classes for comment DIV.

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$class = 'class="' . implode( ' ', get_comment_class( $class, $comment, $post_id ) ) . '"';

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if ( $echo ) {

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echo $class;

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} else {

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return $class;

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}

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}

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/**

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* Returns the classes for the comment div as an array.

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*

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* @since 2.7.0

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* @since 4.4.0 Added the ability for `$comment_id` to also accept a WP_Comment object.

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*

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* @global int $comment_alt

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* @global int $comment_depth

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* @global int $comment_thread_alt

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*

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* @param string|string[] $class Optional. One or more classes to add to the class list. Default empty.

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* @param int|WP_Comment $comment_id Comment ID or WP_Comment object. Default current comment.

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* @param int|WP_Post $post_id Post ID or WP_Post object. Default current post.

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* @return string[] An array of classes.

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*/

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function get_comment_class( $class = '', $comment_id = null, $post_id = null ) {

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global $comment_alt, $comment_depth, $comment_thread_alt;

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$classes = array();

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$comment = get_comment( $comment_id );

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if ( ! $comment ) {

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return $classes;

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}

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// Get the comment type (comment, trackback).

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$classes[] = ( empty( $comment->comment_type ) ) ? 'comment' : $comment->comment_type;

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// Add classes for comment authors that are registered users.

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$user = $comment->user_id ? get_userdata( $comment->user_id ) : false;

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if ( $user ) {

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$classes[] = 'byuser';

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$classes[] = 'comment-author-' . sanitize_html_class( $user->user_nicename, $comment->user_id );

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// For comment authors who are the author of the post.

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$post = get_post( $post_id );

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if ( $post ) {

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if ( $comment->user_id === $post->post_author ) {

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$classes[] = 'bypostauthor';

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}

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}

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}

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if ( empty( $comment_alt ) ) {

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$comment_alt = 0;

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}

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if ( empty( $comment_depth ) ) {

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$comment_depth = 1;

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}

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if ( empty( $comment_thread_alt ) ) {

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$comment_thread_alt = 0;

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}

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if ( $comment_alt % 2 ) {

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$classes[] = 'odd';

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$classes[] = 'alt';

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} else {

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$classes[] = 'even';

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