CLASS_VALIDATE::is_num PHP Метод

    function is_num($num, $min, $max)
    {
        if ($min > 0 && $num < $min) {
            $_status = "too_few";
            //如果定义最小个数，且少于，则返回太少
        } elseif ($max > 0 && $num > $max) {
            $_status = "too_many";
            //如果定义最大个数，且多于，则返回太多
        } else {
            $_status = "ok";
            //返回正确
        }
        return $_status;
    }

function validateStr($str, $min, $max, $type = "str", $format = "text")
{
    $_obj_v = new CLASS_VALIDATE();
    switch ($type) {
        case "str":
            $_status = $_obj_v->is_text($str, $min, $max, $format);
            //验证字符串
            break;
        case "digit":
            $_status = $_obj_v->is_digit($str, $min, $max, $format);
            //验证字符串
            break;
        case "num":
            $_status = $_obj_v->is_num($str, $min, $max);
            //验证个数
            break;
    }
    return array("str" => fn_safe($str), "status" => $_status);
}