Find out whether a template file is used by a page and get that page -WordPress

2 comments

1. The function get_page_template_slug( $post_id ) will return the slug of the currently assigned page template (or an empty string if no template has been assigned – or false if the $post_id does not correspond to an actual page). You can easily use this anywhere (in The Loop, or outside) to determine whether any page has been assigned a page template.

   is_page_template(); function will return true when template is used. you can also pass file name to check if particular template is applied or not.

   if ( is_page_template('about.php') ) {
   // Returns true when 'about.php' is being used.
   } else {
   // Returns false when 'about.php' is not being used.
   }
   

   There is one more method too. You can use get_post_meta to get value of applied template.

   global $post;
   get_post_meta($post->ID,'_wp_page_template',true);
   

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2. The previously suggested answer will not get you what you want. It will just show you in the current page or a page you specify is using the template not find any pages that are using it.

   If you want to actually search to see if any pages are using a template you can make a query. meta_query isn’t the most efficient/fastest but depending on what you are building probably won’t be an issue.

   $query = new WP_Query(
                   array(
                       'post_type'   => 'page',
                       'post_status' => 'publish',
                       'meta_query'  => array(
                           array(
                               'key'   => '_wp_page_template',
                               'value' => 'your-template.php',
                           ),
                       ),
                   )
               );
   
   if ( $query->have_posts() ) {
       /* There is a match so either start the loop and use get_the_permalink() to get the link or make a foreach loop and get the ids of the items and get_the_permalink($id) */
   }
   

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