single.php

<?php 
/**
 * Single Post Template
 * @package WordPress
 * @subpackage Project_Zero
 * @since 0.1
 * 
 * This template applies to all posts without a specialised post template or a custom post template.
 * To create a post template for a custom post type, save this as single-{post_type}.php.
 * An example can be found in single-portfolio.php, which works with the 'portfolio' custom post type in the PLUGIN.
 * 
 * For more information, check out
 * @link https://developer.wordpress.org/themes/template-files-section/post-template-files/
 */

  get_header();
  if ( have_posts() ) : while ( have_posts() ) : the_post(); 
?>
  <section id="post-title" class="post-title page-title single-title">
    <div class="container">
      <h1 class="post-title"><?php the_title(); ?></h1>
      <p class="post-meta">
        <span class="posted_onby meta-item">Posted on <a href="<?php the_permalink(); ?>"><?php echo get_the_date('F j, Y', '', ''); ?></a> by <?php the_author_posts_link(); ?></span>
        <span class="meta-divider">|</span>
        <?php if ( comments_open() ){ ?>
        <span class="comments-enabled meta-item">
          <?php
            $number = (int) get_comments_number( get_the_ID() );
            comments_popup_link( 'Leave a comment', '1 comment', '% comments', '', '');
          ?>
        </span>
        <?php } else { ?>
        <span class="comments-disabled meta-item">
          Comments disabled
        </span>
        <?php } ?>
      </p>
    </div> <!-- .container -->
  </section> <!-- #post-title -->

  <section id="post-<?php the_ID(); ?>" class="single-post page-container">
    <div class="container row">
      <main id="post-content" <?php post_class('col-8') ?>>

        <?php if ( has_post_thumbnail() ) {
          /**
           * @var $featured - Returns attachment source as an array, based on an ID number.
           *                  get_post_thumbnail_id( get_the_ID() ) gets the ID of the featured image linked to the post ID.
           *                  $featured[0] - Image URL
           *                  $featured[1] - Image width in pixels
           *                  $featured[2] - Image height in pixels
           */
          $featured = wp_get_attachment_image_src( get_post_thumbnail_id( get_the_ID() ), 'full' );
        ?>
        <figure class="featured-image">
          <img src="<?php echo $featured[0]; ?>" width="<?php echo $featured[1]; ?>" height="<?php echo $featured[2]; ?>" />
        </figure> <!-- .featured-content -->
        <?php } ?>

        <article class="post-content">
            
          <section class="post-meta">
            <?php include ( STYLESHEETPATH . '/inc/meta.php' ); ?>
          </section> <!-- .post-meta -->

          <section class="entry">
            
            <?php the_content(); ?>
            <?php wp_link_pages(array('before' => '<p><strong>Pages:</strong> ', 'after' => '</p>', 'next_or_number' => 'number')); ?>

          </section> <!-- .entry -->

          <section id="post-categories" class="taxonomy-section section-categories">
            <?php
              /**
               * Gets the categories for this post.
               * If no ID number is declared, the function uses this post's ID number.
               */
              $categories = get_the_category();

              /**
               * Checks if the number of terms in @param array $categories is more than 0 before displaying the results.
               * Excludes queries where there is only one category AND the category is 'Uncategorised' (term_id 1).
               */
              if ( count( $categories ) > 0 && !( count( $categories ) == 1 && $categories[0]->term_id == 1 ) ){
            ?>
              <h3 class="section-title title-categories">Posted under:</h3>

              <ul class="taxonomy-list categories">
                <?php foreach( $categories as $category ) {
                  if ( $category->term_id != 1 ){ // Checks if the category is NOT 'Uncategorised' (term_id 1) ?>
                  <li class="list-item category">
                    <a href="<?php echo get_category_link( $category->term_id ); ?>" class="item-link category-link" id="cat-<?php echo $category->term_id; ?>">
                      <?php echo $category->name; ?>
                    </a>
                  </li> <!-- .list-item.category -->
                <?php } // Ends 'Uncategorised' conditional
                } // Ends category foreach ?>
              </ul> <!-- .taxonomy-list -->

            <?php } else { } // Ends category conditional ?>
          </section> <!-- #post-categories -->

          <section id="post-tags" class="taxonomy-section section-tags">
            <?php
              /**
               * Gets the tags for this post.
               * If no ID number is declared, the function uses this post's ID number.
               */
              $tags = get_the_tags();

              /**
               * Checks if the @param array $tags exists.
               */
              if ( !empty( $tags ) && count( $tags ) > 0 ){
            ?>

              <h3 class="section-title title-tags">Tagged with:</h3>

              <ul class="taxonomy-list tags">
                <?php foreach( $tags as $tag ) { ?>
                  <li class="list-item tag">
                    <a href="<?php echo get_tag_link( $tag->term_id ); ?>" class="item-link tag-link" id="tag-<?php echo $tag->term_id; ?>" title="<?php echo $tag->name; ?>">
                      <?php echo $tag->name; ?>
                    </a>
                  </li> <!-- .list-item.tag -->
                <?php } // Ends tag foreach ?>
              </ul> <!-- .taxonomy-list.tags -->

            <?php } else { } // Ends tag conditional ?>
          </section> <!-- #post-tags -->

          <section id="post-navigation" class="navigation post-links">
            <div class="previous_link"><?php previous_post_link('Previous link: %link') ?></div>
            <div class="next_link"><?php next_post_link('Next link: %link') ?></div>
          </section> <!-- #post-navigation -->

          <section id="post-comments" class="comments">
            <?php comments_template(); ?>
          </section> <!-- #post-comments -->

        </article> <!-- .post-content -->

      </main> <!-- #post-content -->

      <aside id="blog-sidebar" class="col-4">
        <?php get_sidebar(); ?>
      </aside> <!-- #blog-sidebar -->

    </div> <!-- .container.row -->

  </section> <!-- #post-{post_id} -->
<?php 
  endwhile; endif; 
  get_footer(); 
?>