Changeset 43035 for branches/4.9/src/wp-includes/compat.php

Timestamp:

04/30/2018 03:46:07 AM (8 years ago)

Author:

SergeyBiryukov

Message:

General: Introduce a polyfill for is_countable() function added in PHP 7.3.

Props jrf, ayeshrajans, desrosj.
Merges [43034] to the 4.9 branch.
See #43583.

Location:

branches/4.9

Files:

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

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

@@ -498 +498 @@
         require_once ABSPATH . WPINC . '/spl-autoload-compat.php';
 }
+
+if ( ! function_exists( 'is_countable' ) ) {
+        /**
+         * Polyfill for is_countable() function added in PHP 7.3.
+         *
+         * Verify that the content of a variable is an array or an object
+         * implementing Countable.
+         *
+         * @since 4.9.6
+         *
+         * @param mixed $var The value to check.
+         *
+         * @return bool True if `$var` is countable, false otherwise.
+         */
+        function is_countable( $var ) {
+                return ( is_array( $var ) || $var instanceof Countable );
+        }
+}