PHP Manual
Prev |  | Next

# sql_regcase

sql_regcase -- make regular expression for case insensitive match

## Description

`string sql_regcase`(string string);

Returns a valid regular expression which will match `string`, ignoring case. This expression is `string` with each character converted to a bracket expression; this bracket expression contains that character's uppercase and lowercase form if applicable, otherwise it contains the original character twice.

Example 1. sql_regcase() example

      1
      2 echo sql_regcase( "Foo bar" );
      3

prints

    [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.

Prev | Home | Next
split | Up | Semaphore and shared memory functions