在Ubuntu 20.04 | 18.04上安装PHP mcrypt扩展

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我该如何解决E:软件包“ php-mcrypt”没有候选安装Ubuntu 20.04 / 18.04?今天的指南是关于在Ubuntu 20.04 / 18.04上安装PHP mcrypt扩展。 PHP mcrypt扩展是mcrypt加密库的接口,并支持各种块算法,例如DES,TripleDES,Blowfish(默认),3-WAY,SAFER-SK64,SAFER-SK128,TWOFISH,TEA和RC2。在做。 CBC,OFB,CFB,ECB密码模式的GOST。

当我尝试使用apt安装mcrypt时,出现错误。

$ sudo apt install php-mcrypt
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package php-mcrypt is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'php-mcrypt' has no installation candidate

mcrypt扩展已移至PECL存储库,自PHP 7.2.0起不再与PHP捆绑在一起。 PECL是所有已知PHP扩展的存储库,您可以下载并托管自己的PHP扩展。

告诉操作系统获取存储库中可用于安装的软件包的最新列表。

sudo apt update

在Ubuntu上安装开发工具。

sudo apt update
sudo apt install -y build-essential

检查品牌和gcc。

$ gcc --version
gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ make --version
GNU Make 4.2.1
Built for x86_64-pc-linux-gnu
Copyright (C) 1988-2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

首先,您需要在Ubuntu 20.04 | 18.04上安装PHP,dev和pear扩展。

sudo apt install php php-pear php-dev libmcrypt-dev

验证pecl命令在系统上可用。

$ which pecl 
/usr/bin/pecl

PECL的用法:

$ pecl help
Commands:
build                  Build an Extension From C Source
bundle                 Unpacks a Pecl Package
channel-add            Add a Channel
channel-alias          Specify an alias to a channel name
channel-delete         Remove a Channel From the List
channel-discover       Initialize a Channel from its server
channel-info           Retrieve Information on a Channel
channel-login          Connects and authenticates to remote channel server
channel-logout         Logs out from the remote channel server
channel-update         Update an Existing Channel
clear-cache            Clear Web Services Cache
config-create          Create a Default configuration file
config-get             Show One Setting
config-help            Show Information About Setting
config-set             Change Setting
config-show            Show All Settings
convert                Convert a package.xml 1.0 to package.xml 2.0 format
cvsdiff                Run a "cvs diff" for all files in a package
cvstag                 Set CVS Release Tag
download               Download Package
download-all           Downloads each available package from the default channel
info                   Display information about a package
install                Install Package
list                   List Installed Packages In The Default Channel
list-all               List All Packages
list-channels          List Available Channels
list-files             List Files In Installed Package
list-upgrades          List Available Upgrades
login                  Connects and authenticates to remote server [Deprecated in favor of channel-login]
logout                 Logs out from the remote server [Deprecated in favor of channel-logout]
makerpm                Builds an RPM spec file from a PEAR package
package                Build Package
package-dependencies   Show package dependencies
package-validate       Validate Package Consistency
pickle                 Build PECL Package
remote-info            Information About Remote Packages
remote-list            List Remote Packages
run-scripts            Run Post-Install Scripts bundled with a package
run-tests              Run Regression Tests
search                 Search remote package database
shell-test             Shell Script Test
sign                   Sign a package distribution file
svntag                 Set SVN Release Tag
uninstall              Un-install Package
update-channels        Update the Channel List
upgrade                Upgrade Package
upgrade-all            Upgrade All Packages [Deprecated in favor of calling upgrade with no parameters]
Usage: pecl [options] command [command-options] 
Type "pecl help options" to list all options.
Type "pecl help shortcuts" to list all command shortcuts.
Type "pecl help version" or "pecl version" to list version information.
Type "pecl help " to get the help for the specified command.

更新频道:

$ sudo pecl channel-update pecl.php.net
Updating channel "pecl.php.net"
Update of Channel "pecl.php.net" succeeded

$ sudo pecl update-channels
Updating channel "doc.php.net"
Update of Channel "doc.php.net" succeeded
Updating channel "pear.php.net"
Update of Channel "pear.php.net" succeeded
Updating channel "pecl.php.net"
Channel "pecl.php.net" is up to date

让我们搜索mcrypt扩展。

$ sudo pecl search mcrypt
Matched packages, channel pecl.php.net:
=======================================
Package       Stable/(Latest) Local
mcrypt        1.0.3 (stable)        Bindings for the libmcrypt library
mcrypt_filter 0.1.0 (beta)          Applies mcrypt symmetric encryption using stream filters

您可以使用带有安装选项的pecl命令安装mcrypt扩展。

$ sudo pecl install mcrypt
downloading mcrypt-1.0.3.tgz ...
Starting to download mcrypt-1.0.3.tgz (33,590 bytes)
.........done: 33,590 bytes
6 source files, building
running: phpize
Configuring for:
PHP Api Version:         20190902
Zend Module Api No:      20190902
Zend Extension Api No:   320190902
........

提示时

libmcrypt prefix? [autodetect] :

输入 自动检测。

如果在Ubuntu 20.04 Linux机器上完全安装了mcrypt扩展,则将获得类似于以下内容的输出:

Build process completed successfully
Installing '/usr/lib/php/20190902/mcrypt.so'
install ok: channel://pecl.php.net/mcrypt-1.0.3
configuration option "php_ini" is not set to php.ini location
You should add "extension=mcrypt.so" to php.ini

在您的php.ini文件中启用扩展名。

Ubuntu 20.04:

$ sudo vim /etc/php/7.4/cli/php.ini
extension=mcrypt.so

$ sudo vim /etc/php/7.4/apache2/php.ini
extension=mcrypt.so

Ubuntu 18.04:

$ sudo vim /etc/php/7.2/cli/php.ini
extension=mcrypt.so

$ sudo vim /etc/php/7.2/apache2/php.ini
extension=mcrypt.so

您可以使用以下命令来验证模块是否已安装并启用。

$ php -m | grep mcrypt
mcrypt

如果您正在使用Apache或Nginx Web服务器上托管的应用程序,请重新启动它们。

--- Restart Apache web server ---
$ sudo systemctl restart apache2

--- Restart nginx web server ---
$ sudo systemctl restart nginx

这是在Ubuntu 20.4和Ubuntu 18.04 Linux系统上安装mcrypt PHP扩展的简单方法。

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在Ubuntu 20.04 | 18.04上安装PHP mcrypt扩展Udemy.com

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以PDF格式下载指南


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