问题描述
当我尝试从PHP 7.2.X版本加载mcrypt扩展模块时。因此，我尝试使用与我的PHP当前版本兼容的PECL库，以进行安装并遵循以下链接：安装期间Installing mcrypt on PHP 7.2！
以下是在终端上执行某些命令后获得的结果。
root@YYY:/var/www/html/orocrm# apt install php-pear
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following package was automatically installed and is no longer required:
libllvm4.0
Use 'sudo apt autoremove' to remove it.
The following NEW packages will be installed:
php-pear
0 upgraded, 1 newly installed, 0 to remove and 14 not upgraded.
Need to get 285 kB of archives.
After this operation, 2,107 kB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/ondrej/php/ubuntu xenial/main amd64 php-pear all 1:1.10.5+submodules+notgz-1+ubuntu16.04.1+deb.sury.org+1 [285 kB]
Fetched 285 kB in 1s (230 kB/s)
Selecting previously unselected package php-pear.
(Reading database ... 215503 files and directories currently installed.)
Preparing to unpack .../php-pear_1%3a1.10.5+submodules+notgz-1+ubuntu16.04.1+deb.sury.org+1_all.deb ...
Unpacking php-pear (1:1.10.5+submodules+notgz-1+ubuntu16.04.1+deb.sury.org+1) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up php-pear (1:1.10.5+submodules+notgz-1+ubuntu16.04.1+deb.sury.org+1) ...
YYY@YYY:/var/www/html/orocrm$ sudo apt-get -y install gcc make autoconf libc-dev pkg-config
[sudo] password for YYY:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libc6-dev' instead of 'libc-dev'
gcc is already the newest version (4:5.3.1-1ubuntu1).
make is already the newest version (4.1-6).
pkg-config is already the newest version (0.29.1-0ubuntu1).
libc6-dev is already the newest version (2.23-0ubuntu9).
The following package was automatically installed and is no longer required:
libllvm4.0
Use 'sudo apt autoremove' to remove it.
Suggested packages:
autoconf-archive gnu-standards autoconf-doc libtool
The following NEW packages will be installed:
autoconf automake autotools-dev libsigsegv2 m4
0 upgraded, 5 newly installed, 0 to remove and 14 not upgraded.
Need to get 1,079 kB of archives.
After this operation, 3,998 kB of additional disk space will be used.
Get:1 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 libsigsegv2 amd64 2.10-4 [14.1 kB]
Get:2 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 m4 amd64 1.4.17-5 [195 kB]
Get:3 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 autoconf all 2.69-9 [321 kB]
Get:4 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 autotools-dev all 20150820.1 [39.8 kB]
Get:5 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 automake all 1:1.15-4ubuntu1 [510 kB]
Fetched 1,079 kB in 2s (447 kB/s)
Selecting previously unselected package libsigsegv2:amd64.
(Reading database ... 215198 files and directories currently installed.)
Preparing to unpack .../libsigsegv2_2.10-4_amd64.deb ...
Unpacking libsigsegv2:amd64 (2.10-4) ...
Selecting previously unselected package m4.
Preparing to unpack .../archives/m4_1.4.17-5_amd64.deb ...
Unpacking m4 (1.4.17-5) ...
Selecting previously unselected package autoconf.
Preparing to unpack .../autoconf_2.69-9_all.deb ...
Unpacking autoconf (2.69-9) ...
Selecting previously unselected package autotools-dev.
Preparing to unpack .../autotools-dev_20150820.1_all.deb ...
Unpacking autotools-dev (20150820.1) ...
Selecting previously unselected package automake.
Preparing to unpack .../automake_1%3a1.15-4ubuntu1_all.deb ...
Unpacking automake (1:1.15-4ubuntu1) ...
Processing triggers for install-info (6.1.0.dfsg.1-5) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for doc-base (0.10.7) ...
Processing 1 added doc-base file...
Setting up libsigsegv2:amd64 (2.10-4) ...
Setting up m4 (1.4.17-5) ...
Setting up autoconf (2.69-9) ...
Setting up autotools-dev (20150820.1) ...
Setting up automake (1:1.15-4ubuntu1) ...
update-alternatives: using /usr/bin/automake-1.15 to provide /usr/bin/automake (automake) in auto mode
Processing triggers for libc-bin (2.23-0ubuntu9) ...
YYY@YYY:/var/www/html/orocrm$ sudo apt-get -y install libmcrypt-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following package was automatically installed and is no longer required:
libllvm4.0
Use 'sudo apt autoremove' to remove it.
The following NEW packages will be installed:
libmcrypt-dev
0 upgraded, 1 newly installed, 0 to remove and 14 not upgraded.
Need to get 83.7 kB of archives.
After this operation, 438 kB of additional disk space will be used.
Get:1 http://in.archive.ubuntu.com/ubuntu xenial/universe amd64 libmcrypt-dev amd64 2.5.8-3.3 [83.7 kB]
Fetched 83.7 kB in 0s (105 kB/s)
Selecting previously unselected package libmcrypt-dev.
(Reading database ... 215484 files and directories currently installed.)
Preparing to unpack .../libmcrypt-dev_2.5.8-3.3_amd64.deb ...
Unpacking libmcrypt-dev (2.5.8-3.3) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up libmcrypt-dev (2.5.8-3.3) ...
YYY@YYY:/var/www/html/orocrm$ sudo pecl7.2-sp install --nodeps mcrypt-snapshot
sudo: pecl7.2-sp: command not found
当我得到此错误类型为pecl7.2-sp时：找不到命令
从文档部分可以清楚地表明，它已被弃用，从安全角度来看不再可用-从那时起，从PHP 7.2.X的发行版本开始。
但是某些项目需要这些依赖项，以便根据需要执行所需的功能。我该如何解决以上问题？
更新：
长话短说：
投票对发布的答案引起了很多反响。答案需要根据OS体系结构级别进行分类。由于我使用共享服务器进行托管，因此有多个项目驻留在该服务器上，这些代码是用PHP 5.X.X版本编码的，所以我决定降级到默认情况下在基于Debian的OS中支持mcrypt扩展的PHP7.1.X。
正如我在服务器飞行员社区Installing mcrypt Extension on PHP 7.2中的链接中已经提到的那样。这些人告诉过pecl-7.2的更新版本可以在PHP-7.2上安装mcrypt。不幸的是，它以发出的已执行命令的pecl7.2-sp: command not found结尾。稍后，网站页面进行了更新，因此该处的命令与执行时尝试的命令不匹配。
最后，无论哪种解决方案都适合您的OS体系结构级别，就去做吧！
要么
如果以下方法无法解决根本原因。另外，您可以使用默认支持mcrypt扩展的PHP 7.1.X版本
最佳方案
我按照以下步骤使用PECL为PHP7.2安装mcrypt。
-
安装PECL
apt-get install php-pecl
-
在安装MCRYPT之前，您必须安装libmcrypt
apt-get install libmcrypt-dev libreadline-dev
-
使用PECL安装MCRYPT 1.0.1
pecl install mcrypt-1.0.1
-
安装成功后
You should add “extension=mcrypt.so” to php.ini
如果您需要任何帮助，请在下面发表评论。 🙂
IMPORTANT !
According to php.net reference many (all) mcrypt functions have been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
次佳方案
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
出现提示时
libmcrypt prefix? [autodetect] :
按[Enter]自动检测。
成功安装mcrypt trought pecl后，应将mcrypt.so扩展名添加到php.ini中。
输出将如下所示：
...
Build process completed successfully
Installing '/usr/lib/php/20170718/mcrypt.so' ----> this is our path to mcrypt extension lib
install ok: channel://pecl.php.net/mcrypt-1.0.1
configuration option "php_ini" is not set to php.ini location
You should add "extension=mcrypt.so" to php.ini
抓住安装路径并添加到cli和apache2 php.ini配置。
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"
验证扩展已安装
运行命令：
php -i | grep "mcrypt"
输出将如下所示：
/etc/php/7.2/cli/conf.d/mcrypt.ini
Registered Stream Filters => zlib.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, convert.iconv.*, mcrypt.*, mdecrypt.*
mcrypt
mcrypt support => enabled
mcrypt_filter support => enabled
mcrypt.algorithms_dir => no value => no value
mcrypt.modes_dir => no value => no value
第三种方案
@ praneeth-nidarshan涵盖了几乎所有步骤，但有些步骤除外：
-
检查是否已安装梨(或安装)：
$ sudo apt-get install php-pear
-
如果尚未安装，请安装php7.2-dev以避免错误：
sh: phpize: not found
ERROR: `phpize’ failed
$ sudo apt-get install php7.2-dev
-
使用pecl安装mcrypt：
$ sudo pecl install mcrypt-1.0.1
-
将扩展
extension=mcrypt.so添加到您的php.ini配置文件中；如果您不知道它在哪里，请搜索：
$ sudo php -i | grep 'Configuration File'
第四种方案
sudo apt-get install php-pear php7.x-dev
x是您的php版本，例如7.2，即php7.2-dev
apt-get install libmcrypt-dev libreadline-dev
pecl install mcrypt-1.0.1
然后在”/etc/php/7.2/apache2/php.ini”中添加”extension=mcrypt.so”
这里的php.ini取决于您的php安装和apache使用的php版本。