/**
* Submit an image to the moderation service.
* @param string|array $params (string) URL of image to verify, (array) multiple parameters
* @return string Image ID
* @link http://www.webpurify.com/image-moderation/documentation/methods/webpurify.live.imgcheck.php
*/
public function imgCheck($params = array())
{
if (is_string($params)) {
$params = array('imgurl' => $params);
}
WebPurify::requireParams($params, array('imgurl'));
$response = $this->request('imgcheck', $params);
return (string) $response->imgid;
}