Coding Standards: Use strict comparison in wp-includes/pluggable.php.

Follow-up to [3566], [6387], [10437], [11057], [11387], [16208], [16304], [18195], [20410], [26367], [34947].

Props aristath, poena, afercia, SergeyBiryukov.
See #60700.

git-svn-id: https://develop.svn.wordpress.org/trunk@57882 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/pluggable.php

@@ -30,7 +30,7 @@ function wp_set_current_user( $id, $name = '' ) {
 		// If `$id` matches the current user, there is nothing to do.
 		if ( isset( $current_user )
 		&& ( $current_user instanceof WP_User )
-		&& ( $id == $current_user->ID )
+		&& ( $id === $current_user->ID )
 		&& ( null !== $id )
 		) {
 			return $current_user;
@@ -617,7 +617,7 @@ function wp_authenticate( $username, $password ) {
 		 */
 		$user = apply_filters( 'authenticate', null, $username, $password );
 
-		if ( null == $user ) {
+		if ( null === $user ) {
 			/*
 			 * TODO: What should the error message be? (Or would these even happen?)
 			 * Only needed if all authentication handlers fail to return anything.
@@ -1093,7 +1093,7 @@ function wp_set_auth_cookie( $user_id, $remember = false, $secure = '', $token =
 		setcookie( $auth_cookie_name, $auth_cookie, $expire, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN, $secure, true );
 		setcookie( $auth_cookie_name, $auth_cookie, $expire, ADMIN_COOKIE_PATH, COOKIE_DOMAIN, $secure, true );
 		setcookie( LOGGED_IN_COOKIE, $logged_in_cookie, $expire, COOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true );
-		if ( COOKIEPATH != SITECOOKIEPATH ) {
+		if ( COOKIEPATH !== SITECOOKIEPATH ) {
 			setcookie( LOGGED_IN_COOKIE, $logged_in_cookie, $expire, SITECOOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true );
 		}
 	}
@@ -1315,7 +1315,7 @@ function check_admin_referer( $action = -1, $query_arg = '_wpnonce' ) {
 	 *                   False if the nonce is invalid.
 	 */
 	function check_ajax_referer( $action = -1, $query_arg = false, $stop = true ) {
-		if ( -1 == $action ) {
+		if ( -1 === $action ) {
 			_doing_it_wrong( __FUNCTION__, __( 'You should specify an action to be verified by using the first parameter.' ), '4.7.0' );
 		}
 
@@ -1698,12 +1698,12 @@ function wp_notify_postauthor( $comment_id, $deprecated = null ) {
 		$notify_author = apply_filters( 'comment_notification_notify_author', false, $comment->comment_ID );
 
 		// The comment was left by the author.
-		if ( $author && ! $notify_author && $comment->user_id == $post->post_author ) {
+		if ( $author && ! $notify_author && (int) $comment->user_id === (int) $post->post_author ) {
 			unset( $emails[ $author->user_email ] );
 		}
 
 		// The author moderated a comment on their own post.
-		if ( $author && ! $notify_author && get_current_user_id() == $post->post_author ) {
+		if ( $author && ! $notify_author && get_current_user_id() === (int) $post->post_author ) {
 			unset( $emails[ $author->user_email ] );
 		}