is_iterable( mixed $var )

Polyfill for is_iterable() function added in PHP 7.1.

Description

Verify that the content of a variable is an array or an object implementing the Traversable interface.

Parameters

$var

(mixed) (Required) The value to check.

Return

(bool) True if $var is iterable, false otherwise.

Source

File: wp-includes/compat.php 

	function is_iterable( $var ) {
		return ( is_array( $var ) || $var instanceof Traversable );
	}

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Changelog

Changelog
Version Description
WP-4.9.6 Introduced.