libraries/string_native.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Specialized String Functions for phpMyAdmin
   5  *
   6  * Copyright 2002 Robin Johnson <robbat2@users.sourceforge.net>
   7  * http://www.orbis-terrarum.net/?l=people.robbat2
   8  *
   9  * Defines a set of function callbacks that have a pure C version available if
  10  * the "ctype" extension is available, but otherwise have PHP versions to use
  11  * (that are slower).
  12  *
  13  * The SQL Parser code relies heavily on these functions.
  14  *
  15  * @package PhpMyAdmin-String-Native
  16  */
  17
  18 /**
  19  * Returns length of string depending on current charset.
  20  *
  21  * @param string   string to count
  22  * @return  int      string length
  23  */
  24 function PMA_strlen($string)
  25 {
  26     return strlen($string);
  27 }
  28
  29 /**
  30  * Returns substring from string, works depending on current charset.
  31  *
  32  * @param string $string  string to count
  33  * @param int    $start   start of substring
  34  * @param int    $length  length of substring
  35  * @return  string
  36  */
  37 function PMA_substr($string, $start, $length = 2147483647)
  38 {
  39     return substr($string, $start, $length);
  40 }
  41
  42 /**
  43  * Returns postion of $needle in $haystack or false if not found
  44  *
  45  * @param string  $haystack
  46  * @param string  $needle
  47  * @param int     $offset
  48  * @return  integer position of $needle in $haystack or false
  49  */
  50 function PMA_strpos($haystack, $needle, $offset = 0)
  51 {
  52     return strpos($haystack, $needle, $offset);
  53 }
  54
  55 /**
  56  * Make a string lowercase
  57  *
  58  * @param string  $string
  59  * @return  string
  60  */
  61 function PMA_strtolower($string)
  62 {
  63     return strtolower($string);
  64 }
  65
  66 ?>