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tgseclib/phpseclib/Common/Functions/Strings.php

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<?php
/**
* Common String Functions
*
* PHP version 5
*
* @category Common
* @package Functions\Strings
* @author Jim Wigginton <terrafrost@php.net>
* @copyright 2016 Jim Wigginton
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @link http://phpseclib.sourceforge.net
*/
namespace phpseclib\Common\Functions;
/**
* Common String Functions
*
* @package Functions\Strings
* @author Jim Wigginton <terrafrost@php.net>
*/
class Strings
{
/**
* String Shift
*
* Inspired by array_shift
*
* @param string $string
* @param int $index
* @access private
* @return string
*/
static function shift(&$string, $index = 1)
{
$substr = substr($string, 0, $index);
$string = substr($string, $index);
return $substr;
}
}