gistfile1.txt

if ( ! function_exists('lead_image')) {
    /**
     * * Display the post image
     */
    function lead_image()
    {
        $categories   = get_the_terms(get_the_ID(), 'category');
        $dataCategory = [];
        if ( ! empty($categories)) {
            foreach ($categories as $category) {
                $dataCategory[] .= $category->slug;
            }
        }

        if ($image = get_field('thumbnail')) {
            return '<a href="' . get_the_permalink() . '" title="' . esc_attr(get_the_title(get_the_ID())) . '" class="log-event" data-category = "' . implode(',', $dataCategory) . '"><img src="' . $image['url'] . '" class="img-responsive"/></a>';
        } elseif (has_post_thumbnail()) {

            return get_the_post_thumbnail(get_the_ID(), 'large-hero', ['class' => "log-event img-responsive"]);
        } else {
            //return '<a href="' . get_the_permalink() . '"><img src="' . get_template_directory() . '/assets/img/washingtonian-thumb-grey.jpg" class="img-responsive"/></a>';
        }
    }
}

if ( ! function_exists('post_category_image')) {
    /**
     * * Display the post image
     */
    function post_category_image()
    {
        $categories   = get_the_terms(get_the_ID(), 'category');
        $dataCategory = [];
        if ( ! empty($categories)) {
            foreach ($categories as $category) {
                $dataCategory[] .= $category->slug;
            }
        }

        if ($image = get_field('thumbnail')) {
            return '<a href="' . get_the_permalink() . '" title="' . esc_attr(get_the_title(get_the_ID())) . '" class="log-event" data-category = "' . implode(',', $dataCategory) . '"><img src="' . $image['sizes']['thumb-category'] . '" alt="' . get_the_title(get_the_ID()) . '" class="img-responsive"/></a>';
        } elseif (has_post_thumbnail()) {
            return get_the_post_thumbnail(get_the_ID(), 'thumb-category', ['class' => "log-event img-responsive"]);
        } else {
            return '<a href="' . get_the_permalink() . '" title="' . esc_attr(get_the_title(get_the_ID())) . '" class="log-event" data-category = "' . implode(',', $dataCategory) . '"><img src="' . get_template_directory() . '/assets/img/washingtonian-thumb-grey.jpg" alt="' . get_the_title(get_the_ID()) . '" class="img-responsive"/></a>';
        }
    }
}