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Create an array of posts group by alphabet with WP_Query.
Use below to create the list of posts array with the group by alphabet.
Note: I have used post type. You can change this post type with your own. Also, you can modify the WP_Query parameters.
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| <?php | |
| /** | |
| * Get posts group by alphabets. | |
| * | |
| * @todo Change the `prefix_` and with your own unique prefix. | |
| * | |
| * @since 1.0.0 | |
| */ | |
| if( ! function_exists( 'prefix_get_posts_group_by_alphabet' ) ) : | |
| function prefix_get_posts_group_by_alphabet() { | |
| $result = array(); | |
| $query_args = array( | |
| 'post_type' => 'post', | |
| // Query performance optimization. | |
| 'no_found_rows' => true, | |
| 'posts_per_page' => 100, | |
| ); | |
| $query = new WP_Query( $query_args ); | |
| if ( $query->posts ) { | |
| foreach ( $query->posts as $key => $post ) { | |
| $first_letter = substr($post->post_title,0,1); | |
| if( ! empty( $first_letter ) ) { | |
| $result[$first_letter][] = array( | |
| 'ID' => $post->ID, | |
| 'title' => $post->post_title, | |
| ); | |
| } | |
| } | |
| } | |
| if( ! empty( $result ) ) { | |
| ksort( $result ); | |
| } | |
| return $result; | |
| } | |
| endif; |
Now we can show the posts with the group by alphabet with a shortcode.
In below code we have created a shortcode prefix_alphabetic_posts to show the result in the post.
NOTE: Below short code is created only for demo purpose. So, Added inline CSS. You need to use wp_enqueue_scripts to enqueue your scripts.
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| <?php | |
| add_shortcode( 'prefix_alphabetic_posts', 'prefix_alphabetic_posts' ); | |
| function prefix_alphabetic_posts() { | |
| ob_start(); | |
| ?> | |
| <style type="text/css"> | |
| #alphabetical-posts .letters li { | |
| display: inline-block; | |
| margin: 0; | |
| } | |
| #alphabetical-posts .letters a { | |
| text-decoration: none; | |
| font-size: 16px; | |
| background: #ffffff; | |
| height: 2em; | |
| display: inline-block; | |
| width: 2em; | |
| line-height: 2em; | |
| color: #2196F3; | |
| margin: 0; | |
| } | |
| #alphabetical-posts .letters { | |
| text-align: center; | |
| display: inline-flex; | |
| } | |
| #alphabetical-posts .letters-wrap { | |
| text-align: center; | |
| } | |
| #alphabetical-posts .letters a:hover { | |
| background: #2196F3; | |
| color: #fff; | |
| } | |
| #alphabetical-posts .posts { | |
| margin-top: 4em; | |
| max-width: 900px; | |
| margin: 0 auto; | |
| } | |
| #alphabetical-posts .posts .item { | |
| margin-bottom: 4em; | |
| } | |
| #alphabetical-posts .posts .item a { | |
| text-decoration: none; | |
| font-size: 14px; | |
| } | |
| #alphabetical-posts .posts .list > div { | |
| background: #fff; | |
| padding: 15px 15px; | |
| border-bottom: 1px solid #f2f2f2; | |
| } | |
| #alphabetical-posts .list h3 { | |
| margin: 0; | |
| } | |
| #alphabetical-posts .list .content { | |
| margin-top: 5px; | |
| } | |
| </style> | |
| <?php | |
| $result = prefix_get_posts_group_by_alphabet(); | |
| if( $result ) { ?> | |
| <div id="alphabetical-posts"> | |
| <?php $letters = array_keys($result); ?> | |
| <?php if( $letters ) { ?> | |
| <div class="letters-wrap"> | |
| <ul class="letters"> | |
| <?php foreach( $letters as $key => $letter ) { ?> | |
| <li><a href="#goto-letter-<?php echo $letter; ?>"><?php echo $letter; ?></a></li> | |
| <?php } ?> | |
| </ul> | |
| </div> | |
| <?php } ?> | |
| <div class="posts"> | |
| <?php foreach( $result as $letter => $posts ) { ?> | |
| <div id="goto-letter-<?php echo $letter; ?>" class="item"> | |
| <h3><?php echo $letter; ?></h3> | |
| <div class="list"> | |
| <?php foreach( $posts as $key => $post ) { ?> | |
| <div> | |
| <h3><a href="#"><?php echo $post['title']; ?></a></h3> | |
| <div class="content"> | |
| <?php echo wp_trim_words( get_the_excerpt( $post['ID'] ), 20 ); ?> | |
| </div> | |
| </div> | |
| <?php } ?> | |
| </div> | |
| </div> | |
| <?php } ?> | |
| </div> | |
| </div> | |
| <?php } | |
| return ob_get_clean(); | |
| } |