PHP 8 Compatibility - Deprecated: Required parameter $show_name follows optional parameter $grid in

Question

Good Afternoon,

Clearing up some PHP errors to make our site PHP 8 compatible and have been stuck with this one.

The error message Deprecated:

Required parameter $show_name follows optional parameter $grid in

relates to the following line of code:

function wpsc_parent_category_image($show_thumbnails , $category_image , $width, $height, $grid=false, $show_name){

    if(!$show_thumbnails) return;

    if($category_image == WPSC_CATEGORY_URL){
        if(!$show_name) return;
    ?>
    <span class='wpsc_category_image item_no_image ' style='width:<?php echo $width; ?>px; height: <?php echo $height; ?>px;'>
        <span class='link_substitute' >
            <span><?php _e('N/A', 'wp-e-commerce'); ?></span>
        </span>
    </span>
    <?php
    }else{
        ?><img src='<?php echo $category_image; ?>' width='<?php echo $width; ?>' height='<?php echo $height; ?>' /><?php
    }
}

Would anyone have any suggestions on tweaking the above code, so that it is compatible with PHP 8?

Any help would be really appreciated!

Kind Regards,

Andy