Code Modernization: Correct fallback return value in get_the_author().

If the `$authordata` global is not set, `get_the_author()` returned `null`, causing a PHP 8.1 "null to non-nullable" deprecation notice in `ent2ncr()` hooked via `the_author` filter:
{{{
str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated
}}}

This commit updates `get_the_author()` to return an empty string if called before `$authordata` is set, bringing consistency with a few other similar functions which also return an empty string in this case:

* `get_the_author_meta()`
* `get_the_author_posts_link()`
* `get_the_modified_author()`

Follow-up to [695/tests], [2858], [11138], [12284], [20575], [34677], [44616], [53187].

Props Soean, jrf, sabernhardt, salvoaranzulla, antpb, ebai4, sajjad67, tijmensmit, SergeyBiryukov.
Fixes #58157.
Built from https://develop.svn.wordpress.org/trunk@55755


git-svn-id: http://core.svn.wordpress.org/trunk@55267 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2023-05-14 17:58:24 +00:00
parent 8abc201cfe
commit ae3c5a4be6
2 changed files with 12 additions and 10 deletions

View File

@ -14,11 +14,12 @@
* Retrieves the author of the current post.
*
* @since 1.5.0
* @since 6.3.0 Returns an empty string if the author's display name is unknown.
*
* @global WP_User $authordata The current author's data.
*
* @param string $deprecated Deprecated.
* @return string|null The author's display name.
* @return string The author's display name, empty string if unknown.
*/
function get_the_author( $deprecated = '' ) {
global $authordata;
@ -32,9 +33,9 @@ function get_the_author( $deprecated = '' ) {
*
* @since 2.9.0
*
* @param string|null $display_name The author's display name.
* @param string $display_name The author's display name.
*/
return apply_filters( 'the_author', is_object( $authordata ) ? $authordata->display_name : null );
return apply_filters( 'the_author', is_object( $authordata ) ? $authordata->display_name : '' );
}
/**
@ -55,7 +56,7 @@ function get_the_author( $deprecated = '' ) {
*
* @param string $deprecated Deprecated.
* @param bool $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().
* @return string The author's display name, from get_the_author().
*/
function the_author( $deprecated = '', $deprecated_echo = true ) {
if ( ! empty( $deprecated ) ) {
@ -219,15 +220,15 @@ function the_author_meta( $field = '', $user_id = false ) {
/**
* Retrieves either author's link or author's name.
*
* If the author has a home page set, return an HTML link, otherwise just return the
* author's name.
* If the author has a home page set, return an HTML link, otherwise just return
* the author's name.
*
* @since 3.0.0
*
* @global WP_User $authordata The current author's data.
*
* @return string|null An HTML link if the author's url exist in user meta,
* else the result of get_the_author().
* @return string An HTML link if the author's URL exists in user meta,
* otherwise the result of get_the_author().
*/
function get_the_author_link() {
if ( get_the_author_meta( 'url' ) ) {
@ -307,10 +308,11 @@ function the_author_posts() {
*
* @global WP_User $authordata The current author's data.
*
* @return string An HTML link to the author page, or an empty string if $authordata isn't defined.
* @return string An HTML link to the author page, or an empty string if $authordata is not set.
*/
function get_the_author_posts_link() {
global $authordata;
if ( ! is_object( $authordata ) ) {
return '';
}

View File

@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.3-alpha-55754';
$wp_version = '6.3-alpha-55755';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.