php - WordPress get_the_post_thumbnail - get the custom size image? -

i have set featured image/ thumbnail 600x530 in functions.php:

if (function_exists('add_theme_support')) {     add_theme_support('post-thumbnails');     set_post_thumbnail_size(600, 530, true); // default post thumbnail dimensions (cropped) } 

but can't retrieve size via:

echo get_the_post_thumbnail($post->id, array(600, 530), array('class' => 'img-responsive')); 

the image 169x300 or large un-cropped original size. want 600x530.

any ideas?

this explain here:

you can specify additional custom sizes! here’s code:

functions.php

add_theme_support( 'post-thumbnails' ); set_post_thumbnail_size( 50, 50, true ); // normal post thumbnails add_image_size( 'single-post-thumbnail', 400, 9999 ); // permalink thumbnail size 

home.php or index.php, depending on theme structure (in loop)

<?php the_post_thumbnail(); ?> 

single.php (in loop):

<?php the_post_thumbnail( 'single-post-thumbnail' ); ?>