sql_regcase

(PHP 4, PHP 5)

sql_regcase — Make regular expression for case insensitive match

Описание

string sql_regcase ( string $string )

Creates a regular expression for a case insensitive match.

Предупреждение

Тази функция е НЕПРЕПОРЪЧИТЕЛНА от PHP 5.3.0 и ПРЕМАХНАТА след PHP 6.0.0. Да се разчита на тази възможност е силно непрепоръчително.

Параметри

string: The input string.

Връщани стойности

Returns a valid regular expression which will match string , ignoring case. This expression is string with each alphabetic character converted to a bracket expression; this bracket expression contains that character's uppercase and lowercase form. Other characters remain unchanged.

Примери

Example #1 sql_regcase() example


<?php
echo sql_regcase("Foo - bar.");
?>

Примерът по-горе ще изведе:

[Ff][Oo][Oo] - [Bb][Aa][Rr].

This can be used to achieve case insensitive pattern matching in products which support only case sensitive regular expressions.

Бележки

Забележка: As of PHP 5.3.0 the regex extension is deprecated in favor of the PCRE extension. Calling this function will issue an E_DEPRECATED notice.

add a note User Contributed Notes sql_regcase

irker at irker dot net 28-Sep-2008 02:14


&lt;?php


function mb_sql_regcase($string,$encoding=\\\'auto\\\'){


  $max=mb_strlen($item,$encoding);


  for ($i = 0; $i &lt; $max; $i++) {


    $char=mb_substr($item,$i,1,$encoding);


    $up=mb_strtoupper ($char,$encoding);


    $low=mb_strtolower($char,$encoding);


    $ret.=($up!=$low)?\\\'[\\\'.$up.$low.\\\']\\\' : $char;


  }


  return $ret;


}


?&gt;

edge at gts dot smtn dot stavropol dot ru 25-Jun-2003 06:56


if you set right locale:





setlocale(LC_CTYPE,"ru_RU.KOI8-R");





print sql_regcase("Цffnung");





will output:


"[Цц][Ff][Ff][Nn][Uu][Nn][Gg]"

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