Pages: Introduce the `get_page_uri` filter, which makes it possible to manipulate a given page's URI before it's returned from the like-named `get_page_uri()`.

Props tanner-m for the initial patch.
Fixes #15963.


git-svn-id: https://develop.svn.wordpress.org/trunk@35510 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/post-functions.php

@@ -4288,7 +4288,15 @@ function get_page_uri( $page ) {
 		}
 	}
 
-	return $uri;
+	/**
+	 * Filter the URI for a page.
+	 *
+	 * @since 4.4.0
+	 *
+	 * @param string  $uri  Page URI.
+	 * @param WP_Post $page Page object.
+	 */
+	return apply_filters( 'get_page_uri', $uri, $page );
 }
 
 /**