Check whether the_excerpt() function is called in a particular page

1 comment

1. There is no conditional tag, but there is a filter. If you hook into the 'get_the_excerpt' filter, your function will run. So, as an example:

   if(is_archive() || is_category()){
     add_filter( 'get_the_excerpt', 'my_custom_excerpt_filter' );
   }
   
   function my_custom_excerpt_filter( $excerpt ){
     if( !defined( 'USED_EXCERPT' ) ){
       define( 'USED_EXCERPT', true );
     }
   }
   

   Then, to check whether an excerpt was used, any time after the first iteration of the loop, use this:

   if(defined('USED_EXCERPT') && USED_EXCERPT){
     //If the excerpt was used, this if statement returns true.
   }
   

   This isn’t a very elegant or useful way of doing it, but this is how you would do it. If you need to know whether a template will use the excerpt before it loads the template, you’d have to hook this earlier, use fopen() to read through the template file and search for the_excerpt().

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