Simple functions to remove "accents" and replace non-alphanumeric characters. See alphanormalize.inc file.

Sources on Bitbucket: https://bitbucket.org/OPiMedia/alphanormalize_php
Online HTML documentation
Online simple test page

The main function is similar to alphanormalize function of the online JavaScript application http://www.opimedia.be/DS/online-tools/txt2/

LGPL

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see http://www.gnu.org/licenses/.