Avoid PHP notice when attempting to edit a site that does not exist.

Show a more explicit error - "The requested site does not exist."

Fixes #32934.

Built from https://develop.svn.wordpress.org/trunk@33144


git-svn-id: http://core.svn.wordpress.org/trunk@33115 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/network/site-info.php

@@ -42,6 +42,10 @@ if ( ! $id ) {
 }
 
 $details = get_blog_details( $id );
+if ( ! $details ) {
+	wp_die( __( 'The requested site does not exist.' ) );
+}
+
 if ( ! can_edit_network( $details->site_id ) ) {
 	wp_die( __( 'You do not have permission to access this page.' ), 403 );
 }

wp-admin/network/site-settings.php

@@ -39,6 +39,10 @@ if ( ! $id )
 	wp_die( __('Invalid site ID.') );
 
 $details = get_blog_details( $id );
+if ( ! $details ) {
+	wp_die( __( 'The requested site does not exist.' ) );
+}
+
 if ( !can_edit_network( $details->site_id ) )
 	wp_die( __( 'You do not have permission to access this page.' ), 403 );
 

wp-admin/network/site-themes.php

@@ -56,6 +56,10 @@ if ( ! $id )
 $wp_list_table->prepare_items();
 
 $details = get_blog_details( $id );
+if ( ! $details ) {
+	wp_die( __( 'The requested site does not exist.' ) );
+}
+
 if ( !can_edit_network( $details->site_id ) )
 	wp_die( __( 'You do not have permission to access this page.' ), 403 );
 

wp-admin/network/site-users.php

@@ -49,6 +49,10 @@ if ( ! $id )
 	wp_die( __('Invalid site ID.') );
 
 $details = get_blog_details( $id );
+if ( ! $details ) {
+	wp_die( __( 'The requested site does not exist' ) );
+}
+
 if ( ! can_edit_network( $details->site_id ) )
 	wp_die( __( 'You do not have permission to access this page.' ), 403 );
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.3-beta2-33143';
+$wp_version = '4.3-beta2-33144';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.