Password protected posts will no longer show the excerpt

Fixes #100

includes/formatting.php

@@ -17,12 +17,15 @@
 function tptn_excerpt( $id, $excerpt_length = 0, $use_excerpt = true ) {
 	$content = '';
 
+	$post = get_post( $id );
+	if ( empty( $post ) ) {
+		return '';
+	}
 	if ( $use_excerpt ) {
-		$content = get_post( $id )->post_excerpt;
+		$content = $post->post_excerpt;
 	}
-
-	if ( '' === $content ) {
-		$content = get_post( $id )->post_content;
+	if ( empty( $content ) ) {
+		$content = $post->post_content;
 	}
 
 	$output = wp_strip_all_tags( strip_shortcodes( $content ) );
@@ -31,6 +34,10 @@ function tptn_excerpt( $id, $excerpt_length = 0, $use_excerpt = true ) {
 		$output = wp_trim_words( $output, $excerpt_length );
 	}
 
+	if ( post_password_required( $post ) ) {
+		$output = __( 'There is no excerpt because this is a protected post.', 'top-10' );
+	}
+
 	/**
 	 * Filters excerpt generated by tptn.
 	 *

readme.txt

@@ -167,6 +167,7 @@ Release post: [https://webberzone.com/blog/top-10-v2-9-0/](https://webberzone.co
 * Enhancements:
 	* Cache now uses MD5 generated keys based on the Top 10 parameters being passed. This means the cache should now work with shortcodes and manual implementations
 	* Database creation now uses the correct collation
+    * Password protected posts will no longer show the excerpt
 
 * Bug fixes:
 	* `include_cat_ids` didn't work with the shortcode