PHP thumbnail_from_url Examples

Example #1

File: pb-image.php Project: jflowers45/pressbooks

/**
 * Render "Cover Image" meta box
 *
 * @param |WP_Post $post
 */
function cover_image_box($post)
{
    $meta_key = 'pb_cover_image';
    $pid = (int) @$_GET['post'];
    $image_url = thumbnail_from_url(get_post_meta($post->ID, $meta_key, true), 'pb_cover_medium');
    $action = 'pb_delete_cover_image';
    $nonce = wp_create_nonce('pb-delete-cover-image');
    $description = __('Your cover image should be 625px on the shortest side.', 'pressbooks');
    render_cover_image_box($meta_key, $pid, $image_url, $action, $nonce, $description);
}

Example #2

File: pb-image.php Project: pressbooks/pressbooks

/**
 * Render "Cover Image" meta box
 *
 * @param |WP_Post $post
 */
function cover_image_box($post)
{
    $meta_key = 'pb_cover_image';
    $pid = (int) @$_GET['post'];
    $image_url = thumbnail_from_url(get_post_meta($post->ID, $meta_key, true), 'pb_cover_medium');
    $action = 'pb_delete_cover_image';
    $nonce = wp_create_nonce('pb-delete-cover-image');
    $description = __('Cover Image should be 1:1.5 aspect ratio. Recommended dimensions are 2500px × 3750px, maximum size is 2MB.<br />NOTE: This cover will be included in your ebook files but not your PDF export. Read more <a href="https://guide.pressbooks.com/chapter/how-to-design-your-book-cover/">here</a>.', 'pressbooks');
    render_cover_image_box($meta_key, $pid, $image_url, $action, $nonce, $description);
}