CodeIgniter框架中不建议使用函数mcrypt_create_iv() [英] Function mcrypt_create_iv() is deprecated within CodeIgniter framework

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本文介绍了CodeIgniter框架中不建议使用函数mcrypt_create_iv()的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

<?php 
class Encryption {
    var $skey     = "1234561234561234"; // you can change it

    public  function safe_b64encode($string) {

        $data = base64_encode($string);
        $data = str_replace(array('+','/','='),array('-','_',''),$data);
        return $data;
    }

    public function safe_b64decode($string) {
        $data = str_replace(array('-','_'),array('+','/'),$string);
        $mod4 = strlen($data) % 4;
        if ($mod4) {
            $data .= substr('====', $mod4);
        }
        return base64_decode($data);
    }

    public  function encode($value){ 

        if(!$value){return false;}
        $text = $value;
        $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
        $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
        $crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $this->skey, $text, MCRYPT_MODE_ECB, $iv);
        return trim($this->safe_b64encode($crypttext)); 
    }

    public function decode($value){

        if(!$value){return false;}
        $crypttext = $this->safe_b64decode($value); 
        $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
        $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
        $decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $this->skey, $crypttext, MCRYPT_MODE_ECB, $iv);
        return trim($decrypttext);
    }

}

这是我的 encryption.php 文件。我试图解决此错误并进行了大量研究,但找不到合适的答案。我是PHP新手。

It's my encryption.php file. I tried to solve this error and research lots of time but i could not find proper answer. I am newer in PHP.

错误:


遇到PHP错误

A PHP Error was encountered

严重性:8192

消息:不建议使用函数mcrypt_create_iv()

Message: Function mcrypt_create_iv() is deprecated

文件名:libraries / Encryption.php

Filename: libraries/Encryption.php

行号:27


推荐答案

手册 http://php.net/manual/zh-CN/function.mcrypt-create-iv.php 指出:


警告

此函数在PHP 7.1.0中已弃用,在PHP 7.2.0中已删除。

This function was DEPRECATED in PHP 7.1.0, and REMOVED in PHP 7.2.0.

此功能的替代方案包括:

Alternatives to this function include:

  • random_bytes()

如果您不想使用 random_bytes() ,在此处显示:

There is an alternate solution if you don't want to use random_bytes(), and it is shown here:

  • PHP 7 - mcrypt deprecated, need alternative

这篇关于CodeIgniter框架中不建议使用函数mcrypt_create_iv()的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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