Multiple header images based on page, post type, loop type, category and/or featured image. (Categories Images generated by https://wordpress.org/plugins/categories-images/)

header.php

     <?php if ( is_front_page() ) : ?>
 
 <?php elseif ( is_post_type_archive( 'videos' )) : ?>
 <!-- Imagem do cabeçalho no loop de VÍDEOS -->
 	<?php if (function_exists('z_taxonomy_image_url')) : ?>
 		<div style="background: url(<?php echo z_taxonomy_image_url('1'); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
        <?php else : ?>
        <div style="background: url(<?php echo wp_get_attachment_url(get_post_thumbnail_id()); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
 	<?php endif ?>
 
    
<?php elseif ( is_home()) : ?>
 <!-- Imagem do cabeçalho no loop de POSTS -->
 	<?php if (function_exists('z_taxonomy_image_url')) : ?>
 		<div style="background: url(<?php echo z_taxonomy_image_url('17'); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
         <?php else : ?>
        <div style="background: url(<?php echo wp_get_attachment_url(get_post_thumbnail_id()); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
 	<?php endif ?>
    
    
<?php elseif ( is_singular( 'videos' )) : ?>
	 <!-- Imagem do cabeçalho em VÍDEOS individuais -->
    <?php if (function_exists('z_taxonomy_image_url'))  : ?>
 		<div style="background: url(<?php $categories = get_the_category();
$category_id = $categories[0]->cat_ID; echo z_taxonomy_image_url($category_id); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
 		<?php else : ?>
        <div style="background: url(<?php echo wp_get_attachment_url(get_post_thumbnail_id()); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
       <?php endif ?>
        
        
<?php elseif ( is_singular( 'posts' ) ) : ?>
	 <!-- Imagem do cabeçalho em POSTS individuais -->
     <?php if (function_exists('z_taxonomy_image')) : ?>
 		<div style="background: url(<?php $categories = get_the_category();
$category_id = $categories[0]->cat_ID; echo z_taxonomy_image_url($category_id); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
        <?php else : ?>
        <div style="background: url(<?php echo wp_get_attachment_url(get_post_thumbnail_id()); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
        <?php endif ?>
        
<?php elseif ( is_page()) : ?>
      <!-- Imagem do cabeçalho em PÁGINAS internas do site -->
 	       <div style="background: url(<?php echo wp_get_attachment_url(get_post_thumbnail_id()); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
              
        
<?php else : ?>
      <!-- Imagem do cabeçalho para páginas internas do site -->
	<?php if (function_exists('z_taxonomy_image')) : ?>
 		<div style="background: url(<?php $categories = get_the_category();
$category_id = $categories[0]->cat_ID; echo z_taxonomy_image_url($category_id); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
        <?php else : ?>
        <div style="background: url(<?php echo wp_get_attachment_url(get_post_thumbnail_id()); ?>) no-repeat top left; width:100%; height:300px;background-size: cover;"></div>
        <?php endif ?>
    
<?php endif; ?>
</header>