How to use PHP code to display related post with thumbnails

Thanks for quick response.

I tried using this code

<?php
// first get the related post objects with the km_rpbt_related_posts_by_taxonomy() function.

// check if the function already exists
if ( function_exists( 'km_rpbt_related_posts_by_taxonomy' ) ) {

    $args = array(
        'posts_per_page' => 8,
        'post_thumbnail' => true, // only gets the posts that have a post thumbnail
    );

    $taxonomies = array( 'category' );
    $post_id =  $post->ID; // post id available inside the loop.

    $related_posts = km_rpbt_related_posts_by_taxonomy( $post_id , $taxonomies, $args );

    // check if related post were found
    if ( $related_posts ) {

        $defaults = array(
            'columns'    => 2,
            'size'       => 'medium',
        );

        // display the related post thumbnail gallery
        echo km_rpbt_related_posts_by_taxonomy_gallery( $args, $related_posts );
    }
}
	?>

It displays the post with thumbnails, but, the ‘columns’ settings doesn’t works for me, I tried, to make them display only in 1 code by no results. Also the thumbnail is not resizing on defining ‘small’ or ‘large.’

Please help me with this! (BTW I don’t know PHP)

Thank you so much, but one more issue. It seems like the default thumbnail size of the post thumbnails is big (420 x 334) and changing settings to small, medium, and large doesn’t works either.

Please help me how to define those sizes using my functions.php ?

Brilliant, it completely solved my problem. Thanks a lot for your kind support 🙂

Now, the one last thing I just noticed that, indeed the post thumbnail sizes changes, but, actually it just scales the real size of image to the one I had set in the functions file. And despite of the low resolution of the post thumbnail, it size remains same. So, isn’t there a way we can reduce the size as, well?

Well, by those words I mean, that the size(kbs) of the cropped thumbnails should be smaller.

Because a post thumbnail image with 284 x 225 resolution, sizes around 30KB while, the original image compressed using Photoshop with a resolution of 480 x 320 also sizes 32KB. (notice the difference, the post thumbnail size should be lesser, somewhat around 15-20kb)

However, I think it might be because of poor compression method WordPress might be using to crop post thumbnail images.

Thank you so much Keesiemeijer, for your amazing support, and wonderful plugin 🙂

Hey there, I was wondering on how to make the related posts with thumbnails to show with hyperlinked title?

To remind you again, I am using this code to display related post with thumbnails. It works without a flaw. But, the problem is that the related posts shown with this code, only shows the images linked to their respective URLs, and the post title displayed in a stripped plain texts. I just want these related posts titles to be displayed, hyperlinked, along with the post images. I hope you’re getting my issue, please tell me how to do so?

<?php
// first get the related post objects with the km_rpbt_related_posts_by_taxonomy() function.

// check if the function already exists
if ( function_exists( 'km_rpbt_related_posts_by_taxonomy' ) ) {

    $args = array(
        'posts_per_page' => 10,
        'post_thumbnail' => true, // only gets the posts that have a post thumbnail
    );

    $taxonomies = array( 'movie' );
    $post_id =  $post->ID; // post id available inside the loop.

    $related_posts = km_rpbt_related_posts_by_taxonomy( $post_id , $taxonomies, $args );

    // check if related post were found
    if ( $related_posts ) {

        $args = array(
            'columns'    => 2,
            'size'       => 'thumbnail',
        );

        // display the related post thumbnail gallery

        echo km_rpbt_related_posts_by_taxonomy_gallery( $args, $related_posts );
    }
}
	?>

Thanks!