Index: wp-includes/ms-functions.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>windows-1252
===================================================================
--- wp-includes/ms-functions.php	(revision 8d8252aa89b9190366bc993d95e8f4b196b17b91)
+++ wp-includes/ms-functions.php	(revision )
@@ -374,7 +374,7 @@
 	elseif ( $id )
 		return (int) $id;
 
-	$id = $wpdb->get_var( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE domain = %s and path = %s /* get_blog_id_from_url */", $domain, $path ) );
+	$id = (int) $wpdb->get_var( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE domain = %s and path = %s /* get_blog_id_from_url */", $domain, $path ) );
 
 	if ( ! $id ) {
 		wp_cache_set( md5( $domain . $path ), -1, 'blog-id-cache' );
@@ -1321,7 +1321,7 @@
 function domain_exists($domain, $path, $site_id = 1) {
 	global $wpdb;
 	$path = trailingslashit( $path );
-	$result = $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s AND site_id = %d", $domain, $path, $site_id) );
+	$result = (int) $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s AND site_id = %d", $domain, $path, $site_id) );
 
 	/**
 	 * Filter whether a blogname is taken.
@@ -1333,7 +1333,7 @@
 	 * @param string   $path    Path to be checked.
 	 * @param int      $site_id Site ID. Relevant only on multi-network installs.
 	 */
-	return apply_filters( 'domain_exists', $result, $domain, $path, $site_id );
+	return (int) apply_filters( 'domain_exists', $result, $domain, $path, $site_id );
 }
 
 /**
@@ -1863,8 +1863,8 @@
 	$term_id = intval( $term_id );
 	$c = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->terms WHERE term_id = %d", $term_id ) );
 
-	$global_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM $wpdb->sitecategories WHERE category_nicename = %s", $c->slug ) );
-	if ( $global_id == null ) {
+	$global_id = (int) $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM $wpdb->sitecategories WHERE category_nicename = %s", $c->slug ) );
+	if ( $global_id === 0 ) {
 		$used_global_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM $wpdb->sitecategories WHERE cat_ID = %d", $c->term_id ) );
 		if ( null == $used_global_id ) {
 			$wpdb->insert( $wpdb->sitecategories, array( 'cat_ID' => $term_id, 'cat_name' => $c->name, 'category_nicename' => $c->slug ) );
@@ -1878,7 +1878,7 @@
 			$wpdb->insert( $wpdb->sitecategories, array( 'cat_ID' => $new_global_id, 'cat_name' => $c->name, 'category_nicename' => $c->slug ) );
 			$global_id = $wpdb->insert_id;
 		}
-	} elseif ( $global_id != $term_id ) {
+	} elseif ( $global_id !== $term_id ) {
 		$local_id = $wpdb->get_var( $wpdb->prepare( "SELECT term_id FROM $wpdb->terms WHERE term_id = %d", $global_id ) );
 		if ( null != $local_id ) {
 			global_terms( $local_id );
Index: wp-includes/user-functions.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>windows-1252
===================================================================
--- wp-includes/user-functions.php	(revision 8d8252aa89b9190366bc993d95e8f4b196b17b91)
+++ wp-includes/user-functions.php	(revision )
@@ -271,7 +271,7 @@
 
 	$where = get_posts_by_author_sql( $post_type, true, $userid, $public_only );
 
-	$count = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->posts $where" );
+	$count = (int) $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->posts $where" );
 
 	/**
 	 * Filter the number of posts a user has written.
@@ -285,7 +285,7 @@
 	 * @param string|array $post_type   Single post type or array of post types to count the number of posts for.
 	 * @param bool         $public_only Whether to limit counted posts to public posts.
 	 */
-	return apply_filters( 'get_usernumposts', $count, $userid, $post_type, $public_only );
+	return (int) apply_filters( 'get_usernumposts', $count, $userid, $post_type, $public_only );
 }
 
 /**
Index: wp-includes/ms-blogs.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>windows-1252
===================================================================
--- wp-includes/ms-blogs.php	(revision 8d8252aa89b9190366bc993d95e8f4b196b17b91)
+++ wp-includes/ms-blogs.php	(revision )
@@ -91,7 +91,7 @@
 		$path = $current_site->path . $slug . '/';
 	}
 
-	$blog_id = $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM {$wpdb->blogs} WHERE domain = %s AND path = %s", $domain, $path) );
+	$blog_id = (int) $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM {$wpdb->blogs} WHERE domain = %s AND path = %s", $domain, $path) );
 	wp_cache_set( 'get_id_from_blogname_' . $slug, $blog_id, 'blog-details' );
 	return $blog_id;
 }
Index: wp-includes/class-wp-user-query.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>windows-1252
===================================================================
--- wp-includes/class-wp-user-query.php	(revision 8d8252aa89b9190366bc993d95e8f4b196b17b91)
+++ wp-includes/class-wp-user-query.php	(revision )
@@ -437,7 +437,7 @@
 		 * @param string $sql The SELECT FOUND_ROWS() query for the current WP_User_Query.
 		 */
 		if ( isset( $qv['count_total'] ) && $qv['count_total'] )
-			$this->total_users = $wpdb->get_var( apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()' ) );
+			$this->total_users = (int) $wpdb->get_var( apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()' ) );
 
 		if ( !$this->results )
 			return;
Index: wp-includes/media.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>windows-1252
===================================================================
--- wp-includes/media.php	(revision 8d8252aa89b9190366bc993d95e8f4b196b17b91)
+++ wp-includes/media.php	(revision )
@@ -3476,7 +3476,7 @@
 		"SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attached_file' AND meta_value = %s",
 		$path
 	);
-	$post_id = $wpdb->get_var( $sql );
+	$post_id = (int) $wpdb->get_var( $sql );
 
 	/**
 	 * Filter an attachment id found by URL.