Changeset 43037 for branches/4.9/src/wp-includes/compat.php

Timestamp:

04/30/2018 04:16:43 AM (8 years ago)

Author:

SergeyBiryukov

Message:

General: Introduce a polyfill for is_iterable() function added in PHP 7.1.

Props jrf, schlessera, desrosj.
Merges [43036] to the 4.9 branch.
See #43619.

Location:

branches/4.9

Files:

• . (modified) (1 prop)
• src/wp-includes/compat.php (modified) (2 diffs)

branches/4.9/src/wp-includes/compat.php

@@ -504 +504 @@
          *
          * Verify that the content of a variable is an array or an object
-         * implementing Countable.
+         * implementing the Countable interface.
          *
          * @since 4.9.6
@@ -516 +516 @@
         }
 }
+
+if ( ! function_exists( 'is_iterable' ) ) {
+        /**
+         * Polyfill for is_iterable() function added in PHP 7.1.
+         *
+         * Verify that the content of a variable is an array or an object
+         * implementing the Traversable interface.
+         *
+         * @since 4.9.6
+         *
+         * @param mixed $var The value to check.
+         *
+         * @return bool True if `$var` is iterable, false otherwise.
+         */
+        function is_iterable( $var ) {
+                return ( is_array( $var ) || $var instanceof Traversable );
+        }
+}