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<?php
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2004 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 3.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/3_0.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Michael Wallner <mike@php.net> |
// | Aidan Lister <aidan@php.net> |
// +----------------------------------------------------------------------+
//
// $Id: convert_uuencode.php,v 1.7 2005/01/26 04:55:13 aidan Exp $
/**
* Replace convert_uuencode()
*
* @category PHP
* @package PHP_Compat
* @link http://php.net/function.convert_uuencode
* @author Michael Wallner <mike@php.net>
* @author Aidan Lister <aidan@php.net>
* @version $Revision: 1.7 $
* @since PHP 5
* @require PHP 4.0.0 (user_error)
*/
if (!function_exists('convert_uuencode')) {
function convert_uuencode($string)
{
// Sanity check
if (!is_scalar($string)) {
user_error('convert_uuencode() expects parameter 1 to be string, ' .
gettype($string) . ' given', E_USER_WARNING);
return false;
}
$u = 0;
$encoded = '';
while ($c = count($bytes = unpack('c*', substr($string, $u, 45)))) {
$u += 45;
$encoded .= pack('c', $c + 0x20);
while ($c % 3) {
$bytes[++$c] = 0;
}
foreach (array_chunk($bytes, 3) as $b) {
$b0 = ($b[0] & 0xFC) >> 2;
$b1 = (($b[0] & 0x03) << 4) + (($b[1] & 0xF0) >> 4);
$b2 = (($b[1] & 0x0F) << 2) + (($b[2] & 0xC0) >> 6);
$b3 = $b[2] & 0x3F;
$b0 = $b0 ? $b0 + 0x20 : 0x60;
$b1 = $b1 ? $b1 + 0x20 : 0x60;
$b2 = $b2 ? $b2 + 0x20 : 0x60;
$b3 = $b3 ? $b3 + 0x20 : 0x60;
$encoded .= pack('c*', $b0, $b1, $b2, $b3);
}
$encoded .= "\n";
}
// Add termination characters
$encoded .= "\x60\n";
return $encoded;
}
}
?>
|