WordPress at a glance
function is not described

Requests_Session::__isset() public WP 1.0

Remove a property's value

{} It's a method of the class: Requests_Session{}

No Hooks.

Return

Null. Nothing.

Usage

$Requests_Session = new Requests_Session();
$Requests_Session->__isset( $key );
$key(string) (required)
Property key

Code of Requests_Session::__isset() WP 5.5.1

<?php
public function __isset($key) {
	return isset($this->options[$key]);
}