Change Post Title For Specific Category

Question

please I need help with this code

add_action( 'the_title', 'adddd', 10, 2 );
function adddd( $title, $post_id ) 
{
    if( has_category( 30, $post_id ) ) {
        $title = 'Prefix ' . $title;
    }

    return $title;
}

Changing the post title of a specific category.

The code above is working fine displaying the prefix but am getting error when I tried adding a word or two after the post title.

Please any fix for this? Thanks.

Answer 1

You should use filter not action:

function adddd( $title, $post_id ) {
    if( in_category( 30 ) ) {
        $title = 'Prefix - ' . $title . ' - xxx';
    }
    return $title;
}
add_filter( 'the_title', 'adddd', 10, 2 );

Answer 2

It returned an error. So I just edited mine adding . ' xxx' after the title

add_action( 'the_title', 'adddd', 10, 2 );
function adddd( $title, $post_id ) 
{
    if( has_category( 30, $post_id ) ) {
        $title = 'Prefix  ' . $title . '  xxx';
    }

    return $title;
}

It's working as it should now. Thanks very much for your help.