Title: function 'save_details' not found, Warning
Last modified: August 21, 2016

---

# function 'save_details' not found, Warning

 *  [Scampi](https://wordpress.org/support/users/scampi/)
 * (@scampi)
 * [13 years ago](https://wordpress.org/support/topic/function-save_details-not-found-warning/)
 * Hello
 * Long time reader, first time caller.
    I am getting the following warning when
   saving posts, customs posts in the admin, it has to with this line: `add_action('
   save_post', 'save_details');`
 * The error I get is:Warning: call_user_func_array() expects parameter 1 to be 
   a valid callback, function ‘save_details’ not found or invalid function name 
   in /home/mccrudde/public_html/newsite/wp-includes/plugin.php on line 406
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, function‘
   save_details’ not found or invalid function name in /home/mccrudde/public_html/
   newsite/wp-includes/plugin.php on line 406
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/mccrudde/public_html/newsite/wp-includes/plugin.php:406) in /home/mccrudde/
   public_html/newsite/wp-includes/pluggable.php on line 876
 * Now the URL rewrite works perfectly, but, updating the post give the error warning
   and noting else, however changes to the post content are saved. Also I don’t 
   get this error on my local host just online ‘both V3.5.1″
 * I have pasted below the full CPT function code.
 *     ```
       add_action('init', 'trainingcourses');
   
       function trainingcourses() {
   
            register_taxonomy(
               'coursesector',
               'trainingcourses',
               array(
                   'label' => 'Training Sectors',
                   'singular_label' => 'Type',
                   'hierarchical' => true,
                   'query_var' => true,
                   'rewrite' => array('slug' => 'training'),
               )
           );
   
           $labels = array(
               'name' => _x('Training Courses', 'post type general name'),
               'singular_name' => _x('Sector', 'post type singular name')
           );
   
           $args = array(
               'labels' => $labels,
               'public' => true,
               'publicly_queryable' => true,
               'show_ui' => true,
               'query_var' => true,
               'capability_type' => 'post',
               'hierarchical' => false,
               'menu_position' => 6,
               'supports' => array('title','editor','thumbnail', 'excerpt'),
               'rewrite' => array(
                   //'slug' => 'training',
                   'slug' => 'training/%coursesector%',
                   'with_front' => false
               ),
               'has_archive' => 'training'
           ); 
   
           register_post_type( 'trainingcourses' , $args );
           flush_rewrite_rules();
       }
   
       add_action('save_post', 'save_details');
   
       add_filter('post_type_link', 'training_permalink_structure', 10, 4);
       function training_permalink_structure($post_link, $post, $leavename, $sample)
       {
           if ( false !== strpos( $post_link, '%coursesector%' ) ) {
               $coursesector_term = get_the_terms( $post->ID, 'coursesector' );
               $post_link = str_replace( '%coursesector%', array_pop( $coursesector_term )->slug, $post_link );
           }
           return $post_link;
       }
       ```
   
 * this problem on occurs witin the admin, as I say the site front-end works fine.
   but I can’t hand over to client with the error screen. I have looked for hours
   for a solution, but I’m not a coder so am struggling, any help gratefully received.

The topic ‘function 'save_details' not found, Warning’ is closed to new replies.

 * 0 replies
 * 1 participant
 * Last reply from: [Scampi](https://wordpress.org/support/users/scampi/)
 * Last activity: [13 years ago](https://wordpress.org/support/topic/function-save_details-not-found-warning/)
 * Status: not resolved

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