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WP_Ajax_Response::__isset( string $name )

Make private properties checkable for backwards compatibility.

Parameters

$name

(string) (Required) Property to check if set.

Return

(bool) Whether the property is set.

Source

File: wp-includes/class-wp-ajax-response.php 

'what'         => 'object',
			'action'       => false,
			'id'           => '0',

Changelog

Version Description
4.0.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wp_ajax_response/__isset