Orientation of featured image in post?

Question

Is it possible to show orientation of featured image in post on single.php?

For example: Orientation of featured image is: portrait / landscape.

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I have found that this could be done by calculating aspect ratio of image (width / height). For example image with dimensions 1600 x 1200 have aspect ratio 1.33333 (landscape) and 1200 x 1600 have aspect ratio 0.75 (portrait).

If you are interested to find more look on:

Get total number of pixels, size in megapixels and aspect ratio based on image width and height?

Answer 1

Basic check of aspect ratio. Display as landscape, square or portrait

if ( !has_post_thumbnail()) { 
    return 'Error'; 
} else {
    $image = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), '');
    $image_w = $image[1];
    $image_h = $image[2];

    if ($image_w > $image_h) { 
        echo 'landscape';
    }
    elseif ($image_w == $image_h) { 
        echo 'square';
    }
    else { 
        echo 'portrait';
    } 
}