Changeset 62895

Timestamp:

07/29/2026 12:07:38 PM (7 weeks ago)

Author:

SergeyBiryukov

Message:

Code Modernization: Use the null coalescing operator for isset() return checks.

This commit replaces a handful of verbose isset() guard patterns with the null coalescing operator (??):

<?php
// Before
if ( isset( $x ) ) {
    return $x;
} else {
    return $default;
}
    
// After
return $x ?? $default;

Both forms are functionally identical; ?? is shorter and clearer.

Developed in ​https://github.com/WordPress/wordpress-develop/pull/12602.

Follow-up to [61463], [61470], [62870].

Props Soean, westonruter.
See #64897.

Location:

trunk/src/wp-includes

Files:

• capabilities.php (modified) (1 diff)
• customize/class-wp-customize-selective-refresh.php (modified) (1 diff)
• functions.php (modified) (1 diff)
• http.php (modified) (1 diff)

trunk/src/wp-includes/capabilities.php

@@ -1164 +1164 @@
         global $super_admins;
 
-        if ( isset( $super_admins ) ) {
-                return $super_admins;
-        } else {
-                return get_site_option( 'site_admins', array( 'admin' ) );
-        }
+        return $super_admins ?? get_site_option( 'site_admins', array( 'admin' ) );
 }
 

trunk/src/wp-includes/customize/class-wp-customize-selective-refresh.php

@@ -121 +121 @@
          */
         public function get_partial( $id ) {
-                if ( isset( $this->partials[ $id ] ) ) {
-                        return $this->partials[ $id ];
-                } else {
-                        return null;
-                }
+                return $this->partials[ $id ] ?? null;
         }
 

trunk/src/wp-includes/functions.php

@@ -1446 +1446 @@
         }
 
-        if ( isset( $wp_header_to_desc[ $code ] ) ) {
-                return $wp_header_to_desc[ $code ];
-        } else {
-                return '';
-        }
+        return $wp_header_to_desc[ $code ] ?? '';
 }
 

trunk/src/wp-includes/http.php

@@ -856 +856 @@
         );
 
-        if ( isset( $translation[ $constant ] ) ) {
-                return $translation[ $constant ];
-        } else {
-                return false;
-        }
-}
+        return $translation[ $constant ] ?? false;
+}