public function exists($email)
    {
        $url = $this->gravatar->buildGravatarURL($email);
        $headers = get_headers($url, 1);
	    
        return (boolean) strpos($headers[0], '200');
    }
public function exists($email)
    {
        $url = $this->gravatar->buildGravatarURL($email);
        $headers = get_headers($url, 1);
	    
        return (boolean) strpos($headers[0], '200');
    }
public function exists ( $ email ) { $ url = $ this -> gravatar -> buildGravatarURL ( $ email ) ; $ headers = get_headers ( $ url , 1 ) ; return ( boolean ) strpos ( $ headers [ 0 ] , '200' ) ; }
Checks to see whether an avatar for a given user exists or not.

@param string $email
@return bool
Checks to see whether an avatar for a given user exists or not .