diff --git a/src/wp-admin/includes/ms.php b/src/wp-admin/includes/ms.php
index 54d638f6d8..2983952e8b 100644
--- a/src/wp-admin/includes/ms.php
+++ b/src/wp-admin/includes/ms.php
@@ -20,7 +20,7 @@ function check_upload_size( $file ) {
 		return $file;
 	}
 
-	if ( $file['error'] != '0' ) { // there's already an error
+	if ( '0' != $file['error'] ) { // there's already an error
 		return $file;
 	}
 
@@ -45,7 +45,7 @@ function check_upload_size( $file ) {
 		$file['error'] = __( 'You have used your space quota. Please delete files before uploading.' );
 	}
 
-	if ( $file['error'] != '0' && ! isset( $_POST['html-upload'] ) && ! wp_doing_ajax() ) {
+	if ( ! isset( $_POST['html-upload'] ) && ! wp_doing_ajax() ) {
 		wp_die( $file['error'] . ' <a href="javascript:history.go(-1)">' . __( 'Back' ) . '</a>' );
 	}
 
@@ -339,8 +339,8 @@ function update_user_status( $id, $pref, $value, $deprecated = null ) {
 	$user = new WP_User( $id );
 	clean_user_cache( $user );
 
-	if ( $pref == 'spam' ) {
-		if ( $value == 1 ) {
+	if ( 'spam' === $pref ) {
+		if ( 1 === $value ) {
 			/**
 			 * Fires after the user is marked as a SPAM user.
 			 *
@@ -375,7 +375,9 @@ function update_user_status( $id, $pref, $value, $deprecated = null ) {
 function refresh_user_details( $id ) {
 	$id = (int) $id;
 
-	if ( ! $user = get_userdata( $id ) ) {
+	$user = get_userdata( $id );
+
+	if ( ! $user ) {
 		return false;
 	}
 
@@ -608,7 +610,7 @@ function format_code_lang( $code = '' ) {
  *                       if `$taxonomy` is 'category' or 'post_tag'.
  */
 function sync_category_tag_slugs( $term, $taxonomy ) {
-	if ( global_terms_enabled() && ( $taxonomy == 'category' || $taxonomy == 'post_tag' ) ) {
+	if ( global_terms_enabled() && ( 'category' === $taxonomy || 'post_tag' === $taxonomy ) ) {
 		if ( is_object( $term ) ) {
 			$term->slug = sanitize_title( $term->name );
 		} else {
@@ -707,7 +709,7 @@ function mu_dropdown_languages( $lang_files = array(), $current = '' ) {
 		}
 	}
 
-	if ( $flag === false ) { // WordPress english
+	if ( false === $flag ) { // WordPress english
 		$output[] = '<option value=""' . selected( $current, '', false ) . '>' . __( 'English' ) . '</option>';
 	}
 
@@ -745,7 +747,7 @@ function site_admin_notice() {
 		return false;
 	}
 
-	if ( 'upgrade.php' == $pagenow ) {
+	if ( 'upgrade.php' === $pagenow ) {
 		return;
 	}
 
@@ -770,10 +772,10 @@ function avoid_blog_page_permalink_collision( $data, $postarr ) {
 	if ( is_subdomain_install() ) {
 		return $data;
 	}
-	if ( $data['post_type'] != 'page' ) {
+	if ( 'page' !== $data['post_type'] ) {
 		return $data;
 	}
-	if ( ! isset( $data['post_name'] ) || $data['post_name'] == '' ) {
+	if ( ! isset( $data['post_name'] ) || '' === $data['post_name'] ) {
 		return $data;
 	}
 	if ( ! is_main_site() ) {
@@ -786,7 +788,7 @@ function avoid_blog_page_permalink_collision( $data, $postarr ) {
 		$post_name .= mt_rand( 1, 10 );
 		$c ++;
 	}
-	if ( $post_name != $data['post_name'] ) {
+	if ( $data['post_name'] != $post_name ) {
 		$data['post_name'] = $post_name;
 	}
 	return $data;
@@ -816,7 +818,7 @@ function choose_primary_blog() {
 			<select name="primary_blog" id="primary_blog">
 				<?php
 				foreach ( (array) $all_blogs as $blog ) {
-					if ( $primary_blog == $blog->userblog_id ) {
+					if ( $blog->userblog_id == $primary_blog ) {
 						$found = true;
 					}
 					?>
@@ -830,7 +832,7 @@ function choose_primary_blog() {
 				$blog = reset( $all_blogs );
 				update_user_meta( get_current_user_id(), 'primary_blog', $blog->userblog_id );
 			}
-		} elseif ( count( $all_blogs ) == 1 ) {
+		} elseif ( 1 === count( $all_blogs ) ) {
 			$blog = reset( $all_blogs );
 			echo esc_url( get_home_url( $blog->userblog_id ) );
 			if ( $primary_blog != $blog->userblog_id ) { // Set the primary blog again if it's out of sync with blog list.
@@ -858,7 +860,7 @@ function choose_primary_blog() {
  * @return bool True if network can be edited, otherwise false.
  */
 function can_edit_network( $network_id ) {
-	if ( $network_id == get_current_network_id() ) {
+	if ( get_current_network_id() === $network_id ) {
 		$result = true;
 	} else {
 		$result = false;
@@ -901,7 +903,7 @@ function confirm_delete_users( $users ) {
 	?>
 	<h1><?php esc_html_e( 'Users' ); ?></h1>
 
-	<?php if ( 1 == count( $users ) ) : ?>
+	<?php if ( 1 === count( $users ) ) : ?>
 		<p><?php _e( 'You have chosen to delete the user from all networks and sites.' ); ?></p>
 	<?php else : ?>
 		<p><?php _e( 'You have chosen to delete the following users from all networks and sites.' ); ?></p>
@@ -916,8 +918,9 @@ function confirm_delete_users( $users ) {
 	?>
 	<table class="form-table" role="presentation">
 	<?php
-	foreach ( ( $allusers = (array) $_POST['allusers'] ) as $user_id ) {
-		if ( $user_id != '' && $user_id != '0' ) {
+	$allusers = (array) $_POST['allusers'];
+	foreach ( $allusers as $user_id ) {
+		if ( '' !== $user_id && '0' != $user_id ) {
 			$delete_user = get_userdata( $user_id );
 
 			if ( ! current_user_can( 'delete_user', $delete_user->ID ) ) {
@@ -964,7 +967,7 @@ function confirm_delete_users( $users ) {
 								$user_list .= "<option value='{$user->ID}'>{$user->user_login}</option>";
 							}
 						}
-						if ( '' == $user_list ) {
+						if ( '' === $user_list ) {
 							$user_list = $admin_out;
 						}
 						$user_dropdown .= $user_list;
@@ -997,7 +1000,7 @@ function confirm_delete_users( $users ) {
 	/** This action is documented in wp-admin/users.php */
 	do_action( 'delete_user_form', $current_user, $allusers );
 
-	if ( 1 == count( $users ) ) :
+	if ( 1 === count( $users ) ) :
 		?>
 		<p><?php _e( 'Once you hit &#8220;Confirm Deletion&#8221;, the user will be permanently removed.' ); ?></p>
 	<?php else : ?>