libraries/StringCType.class.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Implements PMA_StringType interface using the "ctype" extension.
   5  * Methods of the "ctype" extension are faster compared to PHP versions of them.
   6  *
   7  * @package    PhpMyAdmin-String
   8  * @subpackage CType
   9  */
  10 if (! defined('PHPMYADMIN')) {
  11     exit;
  12 }
  13
  14 require_once 'libraries/StringAbstractType.class.php';
  15
  16 /**
  17  * Implements PMA_StringType interface using the "ctype" extension.
  18  * Methods of the "ctype" extension are faster compared to PHP versions of them.
  19  *
  20  * @package    PhpMyAdmin-String
  21  * @subpackage CType
  22  */
  23 class PMA_StringCType extends PMA_StringAbstractType
  24 {
  25     /**
  26      * Checks if a character is an alphanumeric one
  27      *
  28      * @param string $c character to check for
  29      *
  30      * @return boolean whether the character is an alphanumeric one or not
  31      */
  32     public function isAlnum($c)
  33     {
  34         return ctype_alnum($c);
  35     } // end of the "isAlnum()" function
  36
  37     /**
  38      * Checks if a character is an alphabetic one
  39      *
  40      * @param string $c character to check for
  41      *
  42      * @return boolean whether the character is an alphabetic one or not
  43      */
  44     public function isAlpha($c)
  45     {
  46         return ctype_alpha($c);
  47     } // end of the "isAlpha()" function
  48
  49     /**
  50      * Checks if a character is a digit
  51      *
  52      * @param string $c character to check for
  53      *
  54      * @return boolean whether the character is a digit or not
  55      */
  56     public function isDigit($c)
  57     {
  58         return ctype_digit($c);
  59     } // end of the "isDigit()" function
  60
  61     /**
  62      * Checks if a character is an upper alphabetic one
  63      *
  64      * @param string $c character to check for
  65      *
  66      * @return boolean whether the character is an upper alphabetic one or not
  67      */
  68     public function isUpper($c)
  69     {
  70         return ctype_upper($c);
  71     } // end of the "isUpper()" function
  72
  73
  74     /**
  75      * Checks if a character is a lower alphabetic one
  76      *
  77      * @param string $c character to check for
  78      *
  79      * @return boolean whether the character is a lower alphabetic one or not
  80      */
  81     public function isLower($c)
  82     {
  83         return ctype_lower($c);
  84     } // end of the "PisLower()" function
  85
  86     /**
  87      * Checks if a character is a space one
  88      *
  89      * @param string $c character to check for
  90      *
  91      * @return boolean whether the character is a space one or not
  92      */
  93     public function isSpace($c)
  94     {
  95         return ctype_space($c);
  96     } // end of the "isSpace()" function
  97
  98     /**
  99      * Checks if a character is an hexadecimal digit
 100      *
 101      * @param string $c character to check for
 102      *
 103      * @return boolean whether the character is an hexadecimal digit or not
 104      */
 105     public function isHexDigit($c)
 106     {
 107         return ctype_xdigit($c);
 108     } // end of the "isHexDigit()" function
 109 }