Добавить в теги букву при публикации новости

        if( $_POST['tags'] ) {
            $temp_array = array();
            $tags_array = array();
            $temp_array = explode (",", $_POST['tags']);
    
            if( count($temp_array) ) {
                foreach ( $temp_array as $value ) {
                    // Add letter "a" to tags, letter "a" is in english
                    if( strpos( $value, "a" ) !== false ) {
                        if( trim($value) ) $tags_array[] = trim( $value );
                    } else {
                        if( trim($value) ) $tags_array[] = "a" . trim( $value );
                    }
                }
            }
    
            $_POST['tags'] = ( count($tags_array) ) ? implode(", ", $tags_array) : "";
        }