79 lines
2.9 KiB
PHP
79 lines
2.9 KiB
PHP
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<?php
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2004 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 3.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/3_0.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Michael Wallner <mike@php.net> |
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// | Aidan Lister <aidan@php.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: convert_uuencode.php,v 1.1 2005/07/23 05:56:02 Tony Exp $
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/**
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* Replace convert_uuencode()
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*
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* @category PHP
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* @package PHP_Compat
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* @link http://php.net/function.convert_uuencode
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* @author Michael Wallner <mike@php.net>
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* @author Aidan Lister <aidan@php.net>
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* @version $Revision: 1.1 $
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* @since PHP 5
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* @require PHP 4.0.0 (user_error)
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*/
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if (!function_exists('convert_uuencode')) {
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function convert_uuencode($string)
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{
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// Sanity check
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if (!is_scalar($string)) {
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user_error('convert_uuencode() expects parameter 1 to be string, ' .
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gettype($string) . ' given', E_USER_WARNING);
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return false;
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}
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$u = 0;
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$encoded = '';
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while ($c = count($bytes = unpack('c*', substr($string, $u, 45)))) {
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$u += 45;
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$encoded .= pack('c', $c + 0x20);
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while ($c % 3) {
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$bytes[++$c] = 0;
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}
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foreach (array_chunk($bytes, 3) as $b) {
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$b0 = ($b[0] & 0xFC) >> 2;
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$b1 = (($b[0] & 0x03) << 4) + (($b[1] & 0xF0) >> 4);
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$b2 = (($b[1] & 0x0F) << 2) + (($b[2] & 0xC0) >> 6);
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$b3 = $b[2] & 0x3F;
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$b0 = $b0 ? $b0 + 0x20 : 0x60;
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$b1 = $b1 ? $b1 + 0x20 : 0x60;
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$b2 = $b2 ? $b2 + 0x20 : 0x60;
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$b3 = $b3 ? $b3 + 0x20 : 0x60;
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$encoded .= pack('c*', $b0, $b1, $b2, $b3);
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}
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$encoded .= "\n";
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}
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// Add termination characters
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$encoded .= "\x60\n";
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return $encoded;
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}
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}
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?>
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