libraries/StringNative.class.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Implements PMA_StringByte interface using native PHP functions.
   5  *
   6  * @package    PhpMyAdmin-String
   7  * @subpackage Native
   8  */
   9 if (! defined('PHPMYADMIN')) {
  10     exit;
  11 }
  12
  13 require_once 'libraries/StringByte.int.php';
  14
  15 /**
  16  * Implements PMA_StringByte interface using native PHP functions.
  17  *
  18  * @package    PhpMyAdmin-String
  19  * @subpackage Native
  20  */
  21 class PMA_StringNative implements PMA_StringByte
  22 {
  23     /**
  24      * Returns length of string depending on current charset.
  25      *
  26      * @param string $string string to count
  27      *
  28      * @return int string length
  29      */
  30     public function strlen($string)
  31     {
  32         return strlen($string);
  33     }
  34
  35     /**
  36      * Returns substring from string, works depending on current charset.
  37      *
  38      * @param string $string string to count
  39      * @param int    $start  start of substring
  40      * @param int    $length length of substring
  41      *
  42      * @return string the sub string
  43      */
  44     public function substr($string, $start, $length = 2147483647)
  45     {
  46         return substr($string, $start, $length);
  47     }
  48
  49     /**
  50      * Returns postion of $needle in $haystack or false if not found
  51      *
  52      * @param string $haystack the string being checked
  53      * @param string $needle   the string to find in haystack
  54      * @param int    $offset   the search offset
  55      *
  56      * @return integer position of $needle in $haystack or false
  57      */
  58     public function strpos($haystack, $needle, $offset = 0)
  59     {
  60         return strpos($haystack, $needle, $offset);
  61     }
  62
  63     /**
  64      * Make a string lowercase
  65      *
  66      * @param string $string the string being lowercased
  67      *
  68      * @return string the lower case string
  69      */
  70     public function strtolower($string)
  71     {
  72         return strtolower($string);
  73     }
  74
  75     /**
  76      * Get the ordinal value of a string
  77      *
  78      * @param string $string the string for which ord is required
  79      *
  80      * @return string the ord value
  81      */
  82     public function ord($string)
  83     {
  84         return ord($string);
  85     }
  86 };
  87 ?>