*
* These functions must be used within the WordPress Loop.
*
- * @link http://codex.wordpress.org/Author_Templates
+ * @link https://codex.wordpress.org/Author_Templates
*
* @package WordPress
* @subpackage Template
/**
* Retrieve the author of the current post.
*
- * @since 1.5
- * @uses $authordata The current author's DB object.
- * @uses apply_filters() Calls 'the_author' hook on the author display name.
+ * @since 1.5.0
+ *
+ * @global object $authordata The current author's DB object.
*
* @param string $deprecated Deprecated.
- * @return string The author's display name.
+ * @return string|null The author's display name.
*/
function get_the_author($deprecated = '') {
global $authordata;
- return apply_filters('the_author', $authordata->display_name);
+
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '2.1' );
+
+ /**
+ * Filter the display name of the current post's author.
+ *
+ * @since 2.9.0
+ *
+ * @param string $authordata->display_name The author's display name.
+ */
+ return apply_filters('the_author', is_object($authordata) ? $authordata->display_name : null);
}
/**
* still use the old behavior will also pass the value from get_the_author().
*
* The normal, expected behavior of this function is to echo the author and not
- * return it. However, backwards compatiability has to be maintained.
+ * return it. However, backwards compatibility has to be maintained.
*
* @since 0.71
* @see get_the_author()
- * @link http://codex.wordpress.org/Template_Tags/the_author
+ * @link https://codex.wordpress.org/Template_Tags/the_author
*
* @param string $deprecated Deprecated.
- * @param string $deprecated_echo Echo the string or return it.
- * @return string The author's display name, from get_the_author().
+ * @param string $deprecated_echo Deprecated. Use get_the_author(). Echo the string or return it.
+ * @return string|null The author's display name, from get_the_author().
*/
-function the_author($deprecated = '', $deprecated_echo = true) {
+function the_author( $deprecated = '', $deprecated_echo = true ) {
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '2.1' );
+ if ( $deprecated_echo !== true )
+ _deprecated_argument( __FUNCTION__, '1.5', __('Use <code>get_the_author()</code> instead if you do not want the value echoed.') );
if ( $deprecated_echo )
echo get_the_author();
return get_the_author();
/**
* Retrieve the author who last edited the current post.
*
- * @since 2.8
- * @uses $post The current post's DB object.
- * @uses get_post_meta() Retrieves the ID of the author who last edited the current post.
- * @uses get_userdata() Retrieves the author's DB object.
- * @uses apply_filters() Calls 'the_modified_author' hook on the author display name.
- * @return string The author's display name.
+ * @since 2.8.0
+ *
+ * @return string|void The author's display name.
*/
function get_the_modified_author() {
- global $post;
- if ( $last_id = get_post_meta($post->ID, '_edit_last', true) ) {
+ if ( $last_id = get_post_meta( get_post()->ID, '_edit_last', true) ) {
$last_user = get_userdata($last_id);
+
+ /**
+ * Filter the display name of the author who last edited the current post.
+ *
+ * @since 2.8.0
+ *
+ * @param string $last_user->display_name The author's display name.
+ */
return apply_filters('the_modified_author', $last_user->display_name);
}
}
/**
- * Display the name of the author who last edited the current post.
+ * Display the name of the author who last edited the current post,
+ * if the author's ID is available.
+ *
+ * @since 2.8.0
*
- * @since 2.8
* @see get_the_author()
- * @return string The author's display name, from get_the_modified_author().
*/
function the_modified_author() {
echo get_the_modified_author();
/**
* Retrieve the requested data of the author of the current post.
- * @link http://codex.wordpress.org/Template_Tags/the_author_meta
+ * @link https://codex.wordpress.org/Template_Tags/the_author_meta
* @since 2.8.0
- * @uses $authordata The current author's DB object (if $user_id not specified).
+ *
+ * @global object $authordata The current author's DB object.
+ *
* @param string $field selects the field of the users record.
* @param int $user_id Optional. User ID.
* @return string The author's field from the current author's DB object.
*/
-function get_the_author_meta($field = '', $user_id = false) {
- if ( ! $user_id )
+function get_the_author_meta( $field = '', $user_id = false ) {
+ $original_user_id = $user_id;
+
+ if ( ! $user_id ) {
global $authordata;
- else
+ $user_id = isset( $authordata->ID ) ? $authordata->ID : 0;
+ } else {
$authordata = get_userdata( $user_id );
+ }
- $field = strtolower($field);
- $user_field = "user_$field";
-
- if ( 'id' == $field )
- $value = isset($authordata->ID) ? (int)$authordata->ID : 0;
- elseif ( isset($authordata->$user_field) )
- $value = $authordata->$user_field;
- else
- $value = isset($authordata->$field) ? $authordata->$field : '';
-
- return apply_filters('get_the_author_' . $field, $value);
+ if ( in_array( $field, array( 'login', 'pass', 'nicename', 'email', 'url', 'registered', 'activation_key', 'status' ) ) )
+ $field = 'user_' . $field;
+
+ $value = isset( $authordata->$field ) ? $authordata->$field : '';
+
+ /**
+ * Filter the value of the requested user metadata.
+ *
+ * The filter name is dynamic and depends on the $field parameter of the function.
+ *
+ * @since 2.8.0
+ * @since 4.3.0 The `$original_user_id` parameter was added.
+ *
+ * @param string $value The value of the metadata.
+ * @param int $user_id The user ID for the value.
+ * @param int|bool $original_user_id The original user ID, as passed to the function.
+ */
+ return apply_filters( 'get_the_author_' . $field, $value, $user_id, $original_user_id );
}
/**
- * Retrieve the requested data of the author of the current post.
- * @link http://codex.wordpress.org/Template_Tags/the_author_meta
+ * Outputs the field from the user's DB object. Defaults to current post's author.
+ *
+ * @link https://codex.wordpress.org/Template_Tags/the_author_meta
+ *
* @since 2.8.0
+ *
* @param string $field selects the field of the users record.
* @param int $user_id Optional. User ID.
- * @echo string The author's field from the current author's DB object.
*/
-function the_author_meta($field = '', $user_id = false) {
- echo apply_filters('the_author_' . $field, get_the_author_meta($field, $user_id));
+function the_author_meta( $field = '', $user_id = false ) {
+ $author_meta = get_the_author_meta( $field, $user_id );
+
+ /**
+ * The value of the requested user metadata.
+ *
+ * The filter name is dynamic and depends on the $field parameter of the function.
+ *
+ * @since 2.8.0
+ *
+ * @param string $author_meta The value of the metadata.
+ * @param int $user_id The user ID.
+ */
+ echo apply_filters( 'the_author_' . $field, $author_meta, $user_id );
}
/**
- * Display either author's link or author's name.
+ * Retrieve either author's link or author's name.
*
- * If the author has a home page set, echo an HTML link, otherwise just echo the
+ * If the author has a home page set, return an HTML link, otherwise just return the
* author's name.
*
- * @link http://codex.wordpress.org/Template_Tags/the_author_link
- * @since 2.1
- * @uses get_the_author_meta()
- * @uses the_author()
+ * @return string|null An HTML link if the author's url exist in user meta,
+ * else the result of get_the_author().
*/
-function the_author_link() {
+function get_the_author_link() {
if ( get_the_author_meta('url') ) {
- 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>';
+ return '<a href="' . esc_url( get_the_author_meta('url') ) . '" title="' . esc_attr( sprintf(__("Visit %s’s website"), get_the_author()) ) . '" rel="author external">' . get_the_author() . '</a>';
} else {
- the_author();
+ return get_the_author();
}
}
+/**
+ * Display either author's link or author's name.
+ *
+ * If the author has a home page set, echo an HTML link, otherwise just echo the
+ * author's name.
+ *
+ * @link https://codex.wordpress.org/Template_Tags/the_author_link
+ *
+ * @since 2.1.0
+ */
+function the_author_link() {
+ echo get_the_author_link();
+}
+
/**
* Retrieve the number of posts by the author of the current post.
*
- * @since 1.5
- * @uses $post The current post in the Loop's DB object.
- * @uses get_usernumposts()
+ * @since 1.5.0
+ *
* @return int The number of posts by the author.
*/
function get_the_author_posts() {
- global $post;
- return get_usernumposts($post->post_author);
+ $post = get_post();
+ if ( ! $post ) {
+ return 0;
+ }
+ return count_user_posts( $post->post_author, $post->post_type );
}
/**
* Display the number of posts by the author of the current post.
*
- * @link http://codex.wordpress.org/Template_Tags/the_author_posts
+ * @link https://codex.wordpress.org/Template_Tags/the_author_posts
* @since 0.71
- * @uses get_the_author_posts() Echos returned value from function.
*/
function the_author_posts() {
echo get_the_author_posts();
* reason for this, is that another function is used to help in printing the
* link to the author's posts.
*
- * @link http://codex.wordpress.org/Template_Tags/the_author_posts_link
+ * @link https://codex.wordpress.org/Template_Tags/the_author_posts_link
* @since 1.2.0
- * @uses $authordata The current author's DB object.
- * @uses get_author_posts_url()
- * @uses get_the_author()
+ *
+ * @global object $authordata The current author's DB object.
+ *
* @param string $deprecated Deprecated.
*/
function the_author_posts_link($deprecated = '') {
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '2.1' );
+
global $authordata;
- printf(
- '<a href="%1$s" title="%2$s">%3$s</a>',
- get_author_posts_url( $authordata->ID, $authordata->user_nicename ),
+ if ( ! is_object( $authordata ) ) {
+ return;
+ }
+
+ $link = sprintf(
+ '<a href="%1$s" title="%2$s" rel="author">%3$s</a>',
+ esc_url( get_author_posts_url( $authordata->ID, $authordata->user_nicename ) ),
esc_attr( sprintf( __( 'Posts by %s' ), get_the_author() ) ),
get_the_author()
);
+
+ /**
+ * Filter the link to the author page of the author of the current post.
+ *
+ * @since 2.9.0
+ *
+ * @param string $link HTML link.
+ */
+ echo apply_filters( 'the_author_posts_link', $link );
}
/**
- * Retrieve the URL to the author page of the author of the current post.
+ * Retrieve the URL to the author page for the user with the ID provided.
*
* @since 2.1.0
- * @uses $wp_rewrite WP_Rewrite
+ *
+ * @global WP_Rewrite $wp_rewrite
+ *
* @return string The URL to the author's page.
*/
function get_author_posts_url($author_id, $author_nicename = '') {
$link = $wp_rewrite->get_author_permastruct();
if ( empty($link) ) {
- $file = get_option('home') . '/';
+ $file = home_url( '/' );
$link = $file . '?author=' . $auth_ID;
} else {
if ( '' == $author_nicename ) {
$author_nicename = $user->user_nicename;
}
$link = str_replace('%author%', $author_nicename, $link);
- $link = get_option('home') . trailingslashit($link);
+ $link = home_url( user_trailingslashit( $link ) );
}
- $link = apply_filters('author_link', $link, $author_id, $author_nicename);
+ /**
+ * Filter the URL to the author's page.
+ *
+ * @since 2.1.0
+ *
+ * @param string $link The URL to the author's page.
+ * @param int $author_id The author's id.
+ * @param string $author_nicename The author's nice name.
+ */
+ $link = apply_filters( 'author_link', $link, $author_id, $author_nicename );
return $link;
}
/**
* List all the authors of the blog, with several options available.
*
- * <ul>
- * <li>optioncount (boolean) (false): Show the count in parenthesis next to the
- * author's name.</li>
- * <li>exclude_admin (boolean) (true): Exclude the 'admin' user that is
- * installed bydefault.</li>
- * <li>show_fullname (boolean) (false): Show their full names.</li>
- * <li>hide_empty (boolean) (true): Don't show authors without any posts.</li>
- * <li>feed (string) (''): If isn't empty, show links to author's feeds.</li>
- * <li>feed_image (string) (''): If isn't empty, use this image to link to
- * feeds.</li>
- * <li>echo (boolean) (true): Set to false to return the output, instead of
- * echoing.</li>
- * <li>style (string) ('list'): Whether to display list of authors in list form
- * or as a string.</li>
- * <li>html (bool) (true): Whether to list the items in html for or plaintext.
- * </li>
- * </ul>
- *
- * @link http://codex.wordpress.org/Template_Tags/wp_list_authors
+ * @link https://codex.wordpress.org/Template_Tags/wp_list_authors
+ *
* @since 1.2.0
- * @param array $args The argument array.
- * @return null|string The output, if echo is set to false.
+ *
+ * @global wpdb $wpdb
+ *
+ * @param string|array $args {
+ * Optional. Array or string of default arguments.
+ *
+ * @type string $orderby How to sort the authors. Accepts 'nicename', 'email', 'url', 'registered',
+ * 'user_nicename', 'user_email', 'user_url', 'user_registered', 'name',
+ * 'display_name', 'post_count', 'ID', 'meta_value', 'user_login'. Default 'name'.
+ * @type string $order Sorting direction for $orderby. Accepts 'ASC', 'DESC'. Default 'ASC'.
+ * @type int $number Maximum authors to return or display. Default empty (all authors).
+ * @type bool $optioncount Show the count in parenthesis next to the author's name. Default false.
+ * @type bool $exclude_admin Whether to exclude the 'admin' account, if it exists. Default false.
+ * @type bool $show_fullname Whether to show the author's full name. Default false.
+ * @type bool $hide_empty Whether to hide any authors with no posts. Default true.
+ * @type string $feed If not empty, show a link to the author's feed and use this text as the alt
+ * parameter of the link. Default empty.
+ * @type string $feed_image If not empty, show a link to the author's feed and use this image URL as
+ * clickable anchor. Default empty.
+ * @type string $feed_type The feed type to link to, such as 'rss2'. Defaults to default feed type.
+ * @type bool $echo Whether to output the result or instead return it. Default true.
+ * @type string $style If 'list', each author is wrapped in an `<li>` element, otherwise the authors
+ * will be separated by commas.
+ * @type bool $html Whether to list the items in HTML form or plaintext. Default true.
+ * @type string $exclude An array, comma-, or space-separated list of author IDs to exclude. Default empty.
+ * @type string $exclude An array, comma-, or space-separated list of author IDs to include. Default empty.
+ * }
+ * @return string|void The output, if echo is set to false.
*/
-function wp_list_authors($args = '') {
+function wp_list_authors( $args = '' ) {
global $wpdb;
$defaults = array(
+ 'orderby' => 'name', 'order' => 'ASC', 'number' => '',
'optioncount' => false, 'exclude_admin' => true,
'show_fullname' => false, 'hide_empty' => true,
'feed' => '', 'feed_image' => '', 'feed_type' => '', 'echo' => true,
- 'style' => 'list', 'html' => true
+ 'style' => 'list', 'html' => true, 'exclude' => '', 'include' => ''
);
- $r = wp_parse_args( $args, $defaults );
- extract($r, EXTR_SKIP);
+ $args = wp_parse_args( $args, $defaults );
+
$return = '';
- /** @todo Move select to get_authors(). */
- $authors = $wpdb->get_results("SELECT ID, user_nicename from $wpdb->users " . ($exclude_admin ? "WHERE user_login <> 'admin' " : '') . "ORDER BY display_name");
+ $query_args = wp_array_slice_assoc( $args, array( 'orderby', 'order', 'number', 'exclude', 'include' ) );
+ $query_args['fields'] = 'ids';
+ $authors = get_users( $query_args );
$author_count = array();
- 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) {
+ foreach ( (array) $wpdb->get_results( "SELECT DISTINCT post_author, COUNT(ID) AS count FROM $wpdb->posts WHERE " . get_private_posts_cap_sql( 'post' ) . " GROUP BY post_author" ) as $row ) {
$author_count[$row->post_author] = $row->count;
}
+ foreach ( $authors as $author_id ) {
+ $author = get_userdata( $author_id );
- foreach ( (array) $authors as $author ) {
+ if ( $args['exclude_admin'] && 'admin' == $author->display_name ) {
+ continue;
+ }
- $link = '';
+ $posts = isset( $author_count[$author->ID] ) ? $author_count[$author->ID] : 0;
- $author = get_userdata( $author->ID );
- $posts = (isset($author_count[$author->ID])) ? $author_count[$author->ID] : 0;
- $name = $author->display_name;
+ if ( ! $posts && $args['hide_empty'] ) {
+ continue;
+ }
- if ( $show_fullname && ($author->first_name != '' && $author->last_name != '') )
+ if ( $args['show_fullname'] && $author->first_name && $author->last_name ) {
$name = "$author->first_name $author->last_name";
+ } else {
+ $name = $author->display_name;
+ }
- if( !$html ) {
- if ( $posts == 0 ) {
- if ( ! $hide_empty )
- $return .= $name . ', ';
- } else
- $return .= $name . ', ';
+ if ( ! $args['html'] ) {
+ $return .= $name . ', ';
- // No need to go further to process HTML.
- continue;
+ continue; // No need to go further to process HTML.
}
- if ( !($posts == 0 && $hide_empty) && 'list' == $style )
+ if ( 'list' == $args['style'] ) {
$return .= '<li>';
- if ( $posts == 0 ) {
- if ( ! $hide_empty )
- $link = $name;
- } else {
- $link = '<a href="' . get_author_posts_url($author->ID, $author->user_nicename) . '" title="' . esc_attr( sprintf(__("Posts by %s"), $author->display_name) ) . '">' . $name . '</a>';
+ }
- if ( (! empty($feed_image)) || (! empty($feed)) ) {
- $link .= ' ';
- if (empty($feed_image))
- $link .= '(';
- $link .= '<a href="' . get_author_feed_link($author->ID) . '"';
+ $link = '<a href="' . get_author_posts_url( $author->ID, $author->user_nicename ) . '" title="' . esc_attr( sprintf(__("Posts by %s"), $author->display_name) ) . '">' . $name . '</a>';
- if ( !empty($feed) ) {
- $title = ' title="' . esc_attr($feed) . '"';
- $alt = ' alt="' . esc_attr($feed) . '"';
- $name = $feed;
- $link .= $title;
- }
+ if ( ! empty( $args['feed_image'] ) || ! empty( $args['feed'] ) ) {
+ $link .= ' ';
+ if ( empty( $args['feed_image'] ) ) {
+ $link .= '(';
+ }
- $link .= '>';
+ $link .= '<a href="' . get_author_feed_link( $author->ID, $args['feed_type'] ) . '"';
- if ( !empty($feed_image) )
- $link .= "<img src=\"" . esc_url($feed_image) . "\" style=\"border: none;\"$alt$title" . ' />';
- else
- $link .= $name;
+ $alt = '';
+ if ( ! empty( $args['feed'] ) ) {
+ $alt = ' alt="' . esc_attr( $args['feed'] ) . '"';
+ $name = $args['feed'];
+ }
- $link .= '</a>';
+ $link .= '>';
- if ( empty($feed_image) )
- $link .= ')';
+ if ( ! empty( $args['feed_image'] ) ) {
+ $link .= '<img src="' . esc_url( $args['feed_image'] ) . '" style="border: none;"' . $alt . ' />';
+ } else {
+ $link .= $name;
}
- if ( $optioncount )
- $link .= ' ('. $posts . ')';
+ $link .= '</a>';
+ if ( empty( $args['feed_image'] ) ) {
+ $link .= ')';
+ }
}
- if ( !($posts == 0 && $hide_empty) && 'list' == $style )
- $return .= $link . '</li>';
- else if ( ! $hide_empty )
- $return .= $link . ', ';
+ if ( $args['optioncount'] ) {
+ $link .= ' ('. $posts . ')';
+ }
+
+ $return .= $link;
+ $return .= ( 'list' == $args['style'] ) ? '</li>' : ', ';
}
- $return = trim($return, ', ');
+ $return = rtrim( $return, ', ' );
- if ( ! $echo )
+ if ( ! $args['echo'] ) {
return $return;
+ }
echo $return;
}
-?>
+/**
+ * Does this site have more than one author
+ *
+ * Checks to see if more than one author has published posts.
+ *
+ * @since 3.2.0
+ *
+ * @global wpdb $wpdb
+ *
+ * @return bool Whether or not we have more than one author
+ */
+function is_multi_author() {
+ global $wpdb;
+
+ if ( false === ( $is_multi_author = get_transient( 'is_multi_author' ) ) ) {
+ $rows = (array) $wpdb->get_col("SELECT DISTINCT post_author FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish' LIMIT 2");
+ $is_multi_author = 1 < count( $rows ) ? 1 : 0;
+ set_transient( 'is_multi_author', $is_multi_author );
+ }
+
+ /**
+ * Filter whether the site has more than one author with published posts.
+ *
+ * @since 3.2.0
+ *
+ * @param bool $is_multi_author Whether $is_multi_author should evaluate as true.
+ */
+ return apply_filters( 'is_multi_author', (bool) $is_multi_author );
+}
+
+/**
+ * Helper function to clear the cache for number of authors.
+ *
+ * @private
+ */
+function __clear_multi_author_cache() {
+ delete_transient( 'is_multi_author' );
+}
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