## Example

`

     string sql_regcase ( string $string )

`

## Description

Creates a regular expression for a case insensitive match. Warning: This function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged.

## 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.