josevh

function alphanumeric_increment( $string, $position=false ) {
        if ( false === $position ) {
                $position = strlen( $string ) - 1;
        }
        $increment_str = substr( $string, $position, 1 );
        switch ( $increment_str ) {
                case '9':
                        $string = substr_replace( $string, 'a', $position, 1 );
                        break;
                case 'z':

josevh

/*
** Zabbix
** Copyright (C) 2001-2015 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,