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Code Modernization: Fix PHP 8 "argument must be passed by reference, value given" error in `WP_Comment_Query::get_comments()`. 

The WP native `get_comment()` function expects the first argument `$comment` to be passed by reference.

The PHP `array_map()` function, however, passes by value, not by reference, resulting in an "arguments must be passed by reference, value given" error.

The PHP native `array_walk()` function does pass by reference. Using this prevents the error on PHP 8 and maintains the existing behaviour on PHP < 8.

Props jrf.
See #50913.

git-svn-id: https://develop.svn.wordpress.org/trunk@48838 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov 2020-08-21 21:32:49 +00:00
parent 387bbeb286
commit 29bfc56ca2
1 changed files with 2 additions and 1 deletions
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3
src/wp-includes/class-wp-comment-query.php
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@ -481,7 +481,8 @@ class WP_Comment_Query {
$_comments = apply_filters_ref_array( 'the_comments', array( $_comments, &$this ) );
// Convert to WP_Comment instances.
$comments = array_map( 'get_comment', $_comments );
array_walk( $_comments, 'get_comment' );
$comments = $_comments;
if ( $this->query_vars['hierarchical'] ) {
$comments = $this->fill_descendants( $comments );