63 lines
1.8 KiB
PHP
63 lines
1.8 KiB
PHP
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<?php
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/**
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* helper.php, Kopano Webapp contact to vcf im/exporter
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*
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* Author: Christoph Haas <christoph.h@sprinternet.at>
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* Copyright (C) 2012-2016 Christoph Haas
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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namespace contactimporter;
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class Helper
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{
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/**
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* Generates a random string with variable length.
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*
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* @param $length the lenght of the generated string, defaults to 6
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* @return string a random string
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*/
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public static function randomstring($length = 6)
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{
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// $chars - all allowed charakters
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$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
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srand((double)microtime() * 1000000);
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$i = 0;
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$pass = "";
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while ($i < $length) {
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$num = rand() % strlen($chars);
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$tmp = substr($chars, $num, 1);
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$pass = $pass . $tmp;
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$i++;
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}
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return $pass;
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}
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/**
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* respond/echo JSON
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*
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* @param $arr
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* @return string JSON encoded string
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*/
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public static function respondJSON($arr)
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{
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echo json_encode($arr);
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}
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}
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