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 <?php
 
 /**
  * Flooer Framework
  *
  * LICENSE: BSD License (2 Clause)
  *
  * @category    Flooer
  * @package     Flooer_Utility
  * @author      Akira Ohgaki <akiraohgaki@gmail.com>
  * @copyright   Akira Ohgaki
  * @license     https://opensource.org/licenses/BSD-2-Clause  BSD License (2 Clause)
  * @link        https://github.com/akiraohgaki/flooer
  */
 
 /**
  * Usage
  *
  * $bool = Flooer_Utility_Validation::isUri($uri);
  */
 
 /**
  * Validator class
  *
  * @category    Flooer
  * @package     Flooer_Utility
  * @author      Akira Ohgaki <akiraohgaki@gmail.com>
  */
 class Flooer_Utility_Validation
 {
 
     /**
      * Check for an IP address
      *
      * @param   string $ip
      * @return  bool
      */
     public static function isIp($ip)
     {
         if (filter_var($ip, FILTER_VALIDATE_IP)) {
             return true;
         }
         return false;
     }
 
     /**
      * Check for a URI address
      *
      * @param   string $uri
      * @return  bool
      */
     public static function isUri($uri)
     {
         //if (filter_var($uri, FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQUIRED)) {
         //    return true;
         //}
         if (preg_match("/^(https?|ftps?|davs?|file)(:\/\/[\w\.\~\-\/\?\&\+\=\:\;\@\%\,]+)$/" , $uri)) {
             return true;
         }
         return false;
     }
 
     /**
      * Check for an email address
      *
      * @param   string $email
      * @return  bool
      */
     public static function isEmail($email)
     {
         //if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
         //    return true;
         //}
         if (preg_match("/^([\.\+\w\_\-]+@[\.\w\-]+\.[a-zA-Z]+)$/", $email)) {
             return true;
         }
         return false;
     }
 
     /**
      * Check for alphanumeric characters
      *
      * @param   string $alnum
      * @return  bool
      */
     public static function isAlnum($alnum)
     {
         if (ctype_alnum((string) $alnum)) {
             return true;
         }
         return false;
     }
 
     /**
      * Check for alphabetic characters
      *
      * @param   string $alpha
      * @return  bool
      */
     public static function isAlpha($alpha)
     {
         if (ctype_aplha((string) $alpha)) {
             return true;
         }
         return false;
     }
 
     /**
      * Check for numeric characters
      *
      * @param   string $digit
      * @return  bool
      */
     public static function isDigit($digit)
     {
         if (ctype_digit((string) $digit)) {
             return true;
         }
         return false;
     }
 
     /**
      * Check for the length of a string
      *
      * @param   string $string
      * @param   int $mini
      * @param   int $max
      * @return  bool
      */
     public static function isLength($string, $mini = 1, $max = 255)
     {
         $length = strlen($string);
         if ($length >= $mini && $length <= $max) {
             return true;
         }
         return false;
     }
 
 }