is_countable( mixed $var )
Polyfill for is_countable() function added in PHP 7.3.
Description Description
Verify that the content of a variable is an array or an object implementing the Countable interface.
Parameters Parameters
- $var
-
(mixed) (Required) The value to check.
Return Return
(bool) True if $var is countable, false otherwise.
Source Source
File: wp-includes/compat.php
function is_countable( $var ) {
return ( is_array( $var )
|| $var instanceof Countable
|| $var instanceof SimpleXMLElement
|| $var instanceof ResourceBundle
);
}
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Changelog Changelog
| Version | Description |
|---|---|
| 4.9.6 | Introduced. |