343 lines
10 KiB
PHP
343 lines
10 KiB
PHP
<?php
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/**
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* Author Template functions for use in themes.
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*
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* These functions must be used within the WordPress Loop.
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*
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* @link http://codex.wordpress.org/Author_Templates
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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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* Retrieve the author of the current post.
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*
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* @since 1.5
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* @uses $authordata The current author's DB object.
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* @uses apply_filters() Calls 'the_author' hook on the author display name.
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*
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* @param string $deprecated Deprecated.
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* @return string The author's display name.
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*/
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function get_the_author($deprecated = '') {
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global $authordata;
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return apply_filters('the_author', is_object($authordata) ? $authordata->display_name : null);
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}
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/**
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* Display the name of the author of the current post.
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*
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* The behavior of this function is based off of old functionality predating
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* get_the_author(). This function is not deprecated, but is designed to echo
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* the value from get_the_author() and as an result of any old theme that might
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* still use the old behavior will also pass the value from get_the_author().
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*
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* The normal, expected behavior of this function is to echo the author and not
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* return it. However, backwards compatiability has to be maintained.
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*
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* @since 0.71
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* @see get_the_author()
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* @link http://codex.wordpress.org/Template_Tags/the_author
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*
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* @param string $deprecated Deprecated.
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* @param string $deprecated_echo Echo the string or return it.
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* @return string The author's display name, from get_the_author().
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*/
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function the_author($deprecated = '', $deprecated_echo = true) {
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if ( $deprecated_echo )
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echo get_the_author();
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return get_the_author();
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}
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/**
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* Retrieve the author who last edited the current post.
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*
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* @since 2.8
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* @uses $post The current post's DB object.
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* @uses get_post_meta() Retrieves the ID of the author who last edited the current post.
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* @uses get_userdata() Retrieves the author's DB object.
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* @uses apply_filters() Calls 'the_modified_author' hook on the author display name.
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* @return string The author's display name.
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*/
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function get_the_modified_author() {
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global $post;
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if ( $last_id = get_post_meta($post->ID, '_edit_last', true) ) {
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$last_user = get_userdata($last_id);
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return apply_filters('the_modified_author', $last_user->display_name);
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}
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}
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/**
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* Display the name of the author who last edited the current post.
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*
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* @since 2.8
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* @see get_the_author()
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* @return string The author's display name, from get_the_modified_author().
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*/
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function the_modified_author() {
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echo get_the_modified_author();
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}
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/**
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* Retrieve the requested data of the author of the current post.
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* @link http://codex.wordpress.org/Template_Tags/the_author_meta
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* @since 2.8.0
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* @uses $authordata The current author's DB object (if $user_id not specified).
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* @param string $field selects the field of the users record.
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* @param int $user_id Optional. User ID.
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* @return string The author's field from the current author's DB object.
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*/
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function get_the_author_meta($field = '', $user_id = false) {
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if ( ! $user_id )
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global $authordata;
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else
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$authordata = get_userdata( $user_id );
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$field = strtolower($field);
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$user_field = "user_$field";
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if ( 'id' == $field )
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$value = isset($authordata->ID) ? (int)$authordata->ID : 0;
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elseif ( isset($authordata->$user_field) )
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$value = $authordata->$user_field;
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else
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$value = isset($authordata->$field) ? $authordata->$field : '';
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return apply_filters('get_the_author_' . $field, $value, $user_id);
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}
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/**
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* Retrieve the requested data of the author of the current post.
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* @link http://codex.wordpress.org/Template_Tags/the_author_meta
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* @since 2.8.0
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* @param string $field selects the field of the users record.
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* @param int $user_id Optional. User ID.
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* @echo string The author's field from the current author's DB object.
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*/
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function the_author_meta($field = '', $user_id = false) {
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echo apply_filters('the_author_' . $field, get_the_author_meta($field, $user_id), $user_id);
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}
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/**
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* Display either author's link or author's name.
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*
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* If the author has a home page set, echo an HTML link, otherwise just echo the
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* author's name.
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*
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* @link http://codex.wordpress.org/Template_Tags/the_author_link
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* @since 2.1
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* @uses get_the_author_meta()
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* @uses the_author()
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*/
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function the_author_link() {
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if ( get_the_author_meta('url') ) {
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echo '<a href="' . get_the_author_meta('url') . '" title="' . esc_attr( sprintf(__("Visit %s’s website"), get_the_author()) ) . '" rel="external">' . get_the_author() . '</a>';
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} else {
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the_author();
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}
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}
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/**
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* Retrieve the number of posts by the author of the current post.
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*
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* @since 1.5
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* @uses $post The current post in the Loop's DB object.
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* @uses get_usernumposts()
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* @return int The number of posts by the author.
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*/
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function get_the_author_posts() {
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global $post;
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return get_usernumposts($post->post_author);
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}
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/**
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* Display the number of posts by the author of the current post.
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*
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* @link http://codex.wordpress.org/Template_Tags/the_author_posts
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* @since 0.71
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* @uses get_the_author_posts() Echos returned value from function.
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*/
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function the_author_posts() {
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echo get_the_author_posts();
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}
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/**
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* Display an HTML link to the author page of the author of the current post.
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*
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* Does just echo get_author_posts_url() function, like the others do. The
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* reason for this, is that another function is used to help in printing the
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* link to the author's posts.
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*
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* @link http://codex.wordpress.org/Template_Tags/the_author_posts_link
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* @since 1.2.0
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* @uses $authordata The current author's DB object.
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* @uses get_author_posts_url()
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* @uses get_the_author()
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* @param string $deprecated Deprecated.
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*/
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function the_author_posts_link($deprecated = '') {
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global $authordata;
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$link = sprintf(
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'<a href="%1$s" title="%2$s">%3$s</a>',
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get_author_posts_url( $authordata->ID, $authordata->user_nicename ),
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esc_attr( sprintf( __( 'Posts by %s' ), get_the_author() ) ),
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get_the_author()
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);
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echo apply_filters( 'the_author_posts_link', $link );
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}
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/**
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* Retrieve the URL to the author page of the author of the current post.
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*
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* @since 2.1.0
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* @uses $wp_rewrite WP_Rewrite
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* @return string The URL to the author's page.
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*/
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function get_author_posts_url($author_id, $author_nicename = '') {
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global $wp_rewrite;
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$auth_ID = (int) $author_id;
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$link = $wp_rewrite->get_author_permastruct();
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if ( empty($link) ) {
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$file = get_option('home') . '/';
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$link = $file . '?author=' . $auth_ID;
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} else {
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if ( '' == $author_nicename ) {
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$user = get_userdata($author_id);
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if ( !empty($user->user_nicename) )
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$author_nicename = $user->user_nicename;
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}
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$link = str_replace('%author%', $author_nicename, $link);
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$link = get_option('home') . trailingslashit($link);
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}
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$link = apply_filters('author_link', $link, $author_id, $author_nicename);
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return $link;
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}
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/**
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* List all the authors of the blog, with several options available.
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*
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* <ul>
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* <li>optioncount (boolean) (false): Show the count in parenthesis next to the
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* author's name.</li>
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* <li>exclude_admin (boolean) (true): Exclude the 'admin' user that is
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* installed bydefault.</li>
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* <li>show_fullname (boolean) (false): Show their full names.</li>
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* <li>hide_empty (boolean) (true): Don't show authors without any posts.</li>
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* <li>feed (string) (''): If isn't empty, show links to author's feeds.</li>
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* <li>feed_image (string) (''): If isn't empty, use this image to link to
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* feeds.</li>
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* <li>echo (boolean) (true): Set to false to return the output, instead of
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* echoing.</li>
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* <li>style (string) ('list'): Whether to display list of authors in list form
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* or as a string.</li>
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* <li>html (bool) (true): Whether to list the items in html for or plaintext.
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* </li>
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* </ul>
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*
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* @link http://codex.wordpress.org/Template_Tags/wp_list_authors
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* @since 1.2.0
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* @param array $args The argument array.
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* @return null|string The output, if echo is set to false.
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*/
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function wp_list_authors($args = '') {
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global $wpdb;
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$defaults = array(
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'optioncount' => false, 'exclude_admin' => true,
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'show_fullname' => false, 'hide_empty' => true,
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'feed' => '', 'feed_image' => '', 'feed_type' => '', 'echo' => true,
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'style' => 'list', 'html' => true
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);
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$r = wp_parse_args( $args, $defaults );
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extract($r, EXTR_SKIP);
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$return = '';
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/** @todo Move select to get_authors(). */
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$authors = $wpdb->get_results("SELECT ID, user_nicename from $wpdb->users " . ($exclude_admin ? "WHERE user_login <> 'admin' " : '') . "ORDER BY display_name");
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$author_count = array();
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foreach ((array) $wpdb->get_results("SELECT DISTINCT post_author, COUNT(ID) AS count FROM $wpdb->posts WHERE post_type = 'post' AND " . get_private_posts_cap_sql( 'post' ) . " GROUP BY post_author") as $row) {
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$author_count[$row->post_author] = $row->count;
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}
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foreach ( (array) $authors as $author ) {
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$link = '';
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$author = get_userdata( $author->ID );
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$posts = (isset($author_count[$author->ID])) ? $author_count[$author->ID] : 0;
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$name = $author->display_name;
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if ( $show_fullname && ($author->first_name != '' && $author->last_name != '') )
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$name = "$author->first_name $author->last_name";
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if( !$html ) {
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if ( $posts == 0 ) {
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if ( ! $hide_empty )
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$return .= $name . ', ';
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} else
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$return .= $name . ', ';
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// No need to go further to process HTML.
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continue;
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}
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if ( !($posts == 0 && $hide_empty) && 'list' == $style )
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$return .= '<li>';
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if ( $posts == 0 ) {
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if ( ! $hide_empty )
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$link = $name;
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} else {
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$link = '<a href="' . get_author_posts_url($author->ID, $author->user_nicename) . '" title="' . esc_attr( sprintf(__("Posts by %s"), $author->display_name) ) . '">' . $name . '</a>';
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if ( (! empty($feed_image)) || (! empty($feed)) ) {
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$link .= ' ';
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if (empty($feed_image))
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$link .= '(';
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$link .= '<a href="' . get_author_feed_link($author->ID) . '"';
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if ( !empty($feed) ) {
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$title = ' title="' . esc_attr($feed) . '"';
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$alt = ' alt="' . esc_attr($feed) . '"';
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$name = $feed;
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$link .= $title;
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}
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$link .= '>';
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if ( !empty($feed_image) )
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$link .= "<img src=\"" . esc_url($feed_image) . "\" style=\"border: none;\"$alt$title" . ' />';
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else
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$link .= $name;
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$link .= '</a>';
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if ( empty($feed_image) )
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$link .= ')';
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}
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if ( $optioncount )
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$link .= ' ('. $posts . ')';
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}
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if ( !($posts == 0 && $hide_empty) && 'list' == $style )
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$return .= $link . '</li>';
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else if ( ! $hide_empty )
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$return .= $link . ', ';
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}
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$return = trim($return, ', ');
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if ( ! $echo )
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return $return;
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echo $return;
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}
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?>
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