Changeset 43036 for trunk/src/wp-includes/compat.php

Timestamp:

04/30/2018 04:14:30 AM (7 years ago)

Author:

SergeyBiryukov

Message:

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

Props jrf, schlessera, desrosj.
See #43619.

File:

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

trunk/src/wp-includes/compat.php

@@ -512 +512 @@
      *
      * Verify that the content of a variable is an array or an object
-     * implementing Countable.
+     * implementing the Countable interface.
      *
      * @since 4.9.6
@@ -524 +524 @@
     }
 }
+
+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 );
+    }
+}