# sql_regcase

(PHP 4, PHP 5)

sql_regcase — Make regular expression for case insensitive match

### Description

string sql_regcase ( string `$string` )

Creates a regular expression for a case insensitive match.

### Parameters

`string`

  The input string.

### Return Values

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.

### Examples

Example#1 sql_regcase() example

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

The above example will output:

    [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.