的参数数组wp_remote_get 接受cookies 参数：

$cookies = [];
$cookie = new WP_Http_Cookie( \'cookie_name\' );
$cookie->name = \'cookie_name\';
$cookie->value = \'your cookie value\';
$cookie->expires = 7 * DAY_IN_SECONDS; // expires in 7 days
$cookie->path = \'/\';
$cookie->domain = \'.reddit.com\';
$cookies[] = $cookie;

$url = \'https://tumblr.com/some/url/\';

$args = [
    \'cookies\' => $cookies,
];

$response = wp_remote_get( $url, $args );

离开@phatskat answer，您还可以在构造函数中传递值，WooCommerce的示例如下：

$cookies = [];
$cookies[] = new WP_Http_Cookie( array(
    \'name\'  => $name,
    \'value\' => $value,
));


$args = [
    \'cookies\' => $cookies,
];

$response = wp_remote_get( $url, $args );

当发出CURL或STREAM请求时：https://github.com/WordPress/WordPress/blob/57a3f803ae67814b2639ab8816d59c5fa5add441/wp-includes/class-wp-http-curl.php#L93