php 加密库需要 Mcrypt 扩展
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The Encrypt library requires the Mcrypt extension
提问by Rahul Kumar Singh
I have a PHP application written using the Codeigniter framework. When I am trying to run this application on Windows Machine then I am getting below error:
我有一个使用 Codeigniter 框架编写的 PHP 应用程序。当我尝试在 Windows 机器上运行此应用程序时，出现以下错误：
An Error Was Encountered
The Encrypt library requires the Mcrypt extension.
遇到错误
加密库需要 Mcrypt 扩展。
This same application working fine on some random Windows Machine having the same configuration. I have tried on 5 different windows 10 machines and got this error on 3 Machine and worked fine on 2 machines. Here I have used the same installer to install XAMPP on all the machines and the same code, but still don't know how to make it run smoothly. I have tried almost all the suggestions available online like to make a change in php.ini but no luck so far.
这个相同的应用程序在一些具有相同配置的随机 Windows 机器上运行良好。我在 5 台不同的 Windows 10 机器上尝试过，在 3 台机器上出现了这个错误，在 2 台机器上运行良好。这里我用同一个安装程序在所有机器上安装了XAMPP，代码都一样，但是还是不知道怎么才能顺利运行。我已经尝试了几乎所有在线可用的建议，比如在 php.ini 中进行更改，但到目前为止还没有运气。
回答by Pushpendra Kumar
(FOR CI USERS only) If you are switched from CI2 XAMPP(php5) to XAMPP(php7) then, paste encrypt.phpin CI->system->libraries folder, after this it should be fine !
（仅适用于CI用户）如果您是从CI2 XAMPP（PHP5）切换到XAMPP（PHP7）然后，粘贴encrypt.php在CI->系统- >库文件夹，在此之后应该罚款！
回答by Abhishek Soni
For the future comers, I have face this problem too. It is usually issue with php 7.2.
对于未来的人，我也面临这个问题。它通常是 php 7.2 的问题。
Simply replace encryptwith encryptionin autoload.php
只需在 autoload.php 中替换encrypt为encryption
$autoload['libraries'] = array('database', 'email', 'session', 'encrypt', 'pagination');
$autoload['libraries'] = array('database', 'email', 'session', '**encryption**', 'pagination');
回答by Anatoliy R
To codeigniterdevelopers: some CIreleases do not have encryptlisted in autoload
对于codeigniter开发人员：一些CI版本在自动加载中没有列出加密
$autoload['libraries'] = array();
Instead, they are loaded under CI_Controllerderived controllers.
相反，它们在CI_Controller派生控制器下加载。
Search for
搜索
$this->load->library('encrypt');
and replace with:
并替换为：
$this->load->library('encryption');
回答by Bira
On Linux where PHP 5.6 or less...
在 PHP 5.6 或更低版本的 Linux 上...
apt-get install php5-mcrypt
apt-get install php5-mcrypt
回答by Nagababu m
For Windows users
对于 Windows 用户
Autoload.php file will be as follows
Autoload.php 文件如下
$autoload['libraries'] = array('database', 'session', 'form_validation', 'encrypt', 'template', 'finediff', 'parser');
$autoload['libraries'] = array('database', 'session', 'form_validation', 'encrypt', 'template', 'finediff', 'parser');
From the above remove encryption like below, after that restart apache services then it will works....
从上面删除像下面这样的加密，然后重新启动 apache 服务，然后它就可以工作了....
$autoload['libraries'] = array('database', 'session', 'form_validation', 'template', 'finediff', 'parser');
$autoload['libraries'] = array('database', 'session', 'form_validation', 'template', 'finediff', 'parser');
回答by pspatel
Run the following code to check if the mccrypt is enabled in your PHP Settings.
运行以下代码以检查您的 PHP 设置中是否启用了 mccrypt。
<?php phpinfo(); ?>
By default, it is enabled on some server so that's why it is working on the random machine.
默认情况下，它在某些服务器上启用，这就是它在随机机器上工作的原因。
The quickest method to enable php-mcrypt on windows server – all you need to do is:
在 Windows 服务器上启用 php-mcrypt 的最快方法 - 您需要做的就是：
Find php.ini (main php configuration file)
Open and search for;extension=php_mcrypt.dll )
Uncomment/remove “;” and save the php.ini
找到php.ini（主要的php配置文件）
打开并搜索;extension=php_mcrypt.dll )
取消注释/删除“;” 并保存 php.ini
回答by spoofie
Open php.ini
打开 php.ini
search for ;extension=php_mcrypt.dll
搜索 ;extension=php_mcrypt.dll
then remove ;infront of it to uncomment it.
然后删除; 在它面前取消注释。
save the php.ini file
保存 php.ini 文件
回答by Shashank Saxena
I was using PHP 7.2.xx version of php and followed the following steps:
我使用的是 PHP 7.2.xx 版本的 php 并遵循以下步骤：
Mcrypt PECL extenstion
Mcrypt PECL 扩展
sudo apt-get -y install gcc make autoconf libc-dev pkg-config
sudo apt-get -y install libmcrypt-dev
sudo pecl install mcrypt-1.0.1
Update the ini file with these commands:
使用以下命令更新 ini 文件：
sudo bash -c "echo extension=/usr/lib/php/20170718/mcrypt.so > /etc/php/7.2/cli/conf.d/mcrypt.ini"
sudo bash -c "echo extension=/usr/lib/php/20170718/mcrypt.so > /etc/php/7.2/apache2/conf.d/mcrypt.ini"
Verifying the installation:
验证安装：
php7.2-sp -i | grep mcrypt
