How to insert a comma to the child comment construction in function.php?|Programmer puzzle solving

I insert the name of parent comment's author in child comment

   if( $comment->comment_parent )
    comment_author( $comment->comment_parent );

How to insert a comma to this construction in function.php?

Example,

if( $comment->comment_parent )
comment_author( $comment->comment_parent ) . ', ';

do not work.

Thanks

I insert the name of parent comment's author in child comment

   if( $comment->comment_parent )
    comment_author( $comment->comment_parent );

How to insert a comma to this construction in function.php?

Example,

if( $comment->comment_parent )
comment_author( $comment->comment_parent ) . ', ';

do not work.

Thanks

Share Improve this question asked Mar 9, 2019 at 20:08 Андрей Сахаров 132 bronze badges

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1 Answer 1

Sorted by: Reset to default 1

comment_author prints the author. It doesn’t return anything.

So if you do this:

if ( $comment->comment_parent )
    comment_author( $comment->comment_parent ) . ', ';

Then, what it really does is:

check if comment has parent and if so:
- print its author
- get the result of function comment_author (which is empty) and concatenate it with string containing ', '
- don’t do anything with that string

And what you want is this:

if ( $comment->comment_parent ) {
    comment_author( $comment->comment_parent );
    echo ', ';
}