Changeset 43034 for trunk/src/wp-includes/compat.php

Timestamp:

04/30/2018 03:42:46 AM (6 years ago)

Author:

SergeyBiryukov

Message:

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

Props jrf, ayeshrajans, desrosj.
See #43583.

File:

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

trunk/src/wp-includes/compat.php

@@ -506 +506 @@
     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 );
+    }
+}