contactimporter/php/helper.php

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2016-11-30 12:31:42 +01:00
<?php
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/**
* helper.php, Kopano Webapp contact to vcf im/exporter
*
* Author: Christoph Haas <christoph.h@sprinternet.at>
2018-03-08 10:33:06 +01:00
* Copyright (C) 2012-2018 Christoph Haas
2016-11-30 12:31:42 +01:00
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
namespace contactimporter;
class Helper
{
/**
* Generates a random string with variable length.
*
* @param $length the lenght of the generated string, defaults to 6
* @return string a random string
*/
public static function randomstring($length = 6)
{
// $chars - all allowed charakters
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
srand((double)microtime() * 1000000);
$i = 0;
$pass = "";
while ($i < $length) {
$num = rand() % strlen($chars);
$tmp = substr($chars, $num, 1);
$pass = $pass . $tmp;
$i++;
}
return $pass;
}
/**
* respond/echo JSON
*
* @param $arr
* @return string JSON encoded string
*/
public static function respondJSON($arr)
{
echo json_encode($arr);
}
}