Page header with featured image as background in wordpress

page.php

<?php if (has_post_thumbnail( $post->ID ) ): ?>
  <?php $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'single-post-thumbnail' ); ?>
  <header class="entry-header entry-header-background" style="background-image: url('<?php echo $image[0]; ?>')">
<?php else: ?>
  <header class="entry-header">
<?php endif; ?>		
  <div class="container">
    <?php the_title( '<h1 class="entry-title">', '</h1>' ); ?>
  </div>
</header><!-- .entry-header -->