php使用filter过滤器验证邮箱 ipv6地址 url验证

$email = 'jb51@qq.';
$result = filter_var($email, FILTER_VALIDATE_EMAIL);
var_dump($result); //string(14) "jb51@qq."

$url = "https://.jb51.";
$result = filter_var($url, FILTER_VALIDATE_URL);
var_dump($result); //string(22) "https://.jb51."

$url = "192.168.1.110";
$result = filter_var($url, FILTER_VALIDATE_IP);
var_dump($result); //string(13) "192.168.1.110"

$url = "2001:DB8:2de::e13";
$result = filter_var($url, FILTER_VALIDATE_IP);
var_dump($result); //string(17) "2001:DB8:2de::e13"

$i = '010';
$result = filter_var(
    $i,
    FILTER_VALIDATE_INT,
    //设定校验的数值范围
    array(
      'options' => array('min_range' => 1, 'max_range' => 100)
    )
);
var_dump($result);//bool(false)

$i = '010';
$result = $i >= 1 && $i <= 100;
var_dump($result);//bool(true)

$float = 12.312;
$result = filter_var($float, FILTER_VALIDATE_FLOAT);
var_dump($result); //float(12.312)