Posts, Post Types: Add post_states_string filter for HTML string of post states.

Developed in WordPress/wordpress-develop#10000

Props paulbonneau, mukesh27, westonruter, SirLouen, dmsnell, brandbrilliance, shsajalchowdhury, aialvi, ugyensupport.
Fixes #51403.

Built from https://develop.svn.wordpress.org/trunk@60986


git-svn-id: https://core.svn.wordpress.org/trunk@60322 1a063a9b-81f0-0310-95a4-ce76da25c4cd

Author: westonruter

wp-admin/includes/template.php

@@ -2265,6 +2265,17 @@ function _post_states( $post, $display = true ) {
 		}
 	}
 
+	/**
+	 * Filters the HTML string of post states.
+	 *
+	 * @since 6.9.0
+	 *
+	 * @param string   $post_states_string The post states HTML string.
+	 * @param string[] $post_states        The post states.
+	 * @param WP_Post  $post               The current post object.
+	 */
+	$post_states_string = apply_filters( 'post_states_string', $post_states_string, $post_states, $post );
+
 	if ( $display ) {
 		echo $post_states_string;
 	}

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.9-alpha-60985';
+$wp_version = '6.9-alpha-60986';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.