這篇文章主要為大家介紹了CentOS系統下通過yum安裝php mcrypt擴展的方法，需要的朋友可以參考下使用 yum install php-mcrypt 安裝mcrypt擴展時會提示沒有安裝包

Setting up Install ProcessNo package php-mcrypt available.Error: Nothing to do

mcrypt 是加密擴展庫，加載了它可以用他里面自帶的22種加密解密算法

CentOS6 默認安裝的是php5.3.2

默認的 redhat repos php中是沒有 mcrypt 擴展的根據紅帽的官方消息(https://bugzilla.redhat.com/show_bug.cgi?id=621268)RHEL 不打算添加PHP的mcrypt 的支持Joe Orton 2010-08-05 04:47:17 EDT

Thanks for the report.

We are not planning to ship mcrypt support for PHP.

解決方法：

從php 官網下載新的php 5.3 源碼包后，解壓到本地目錄進入解壓目錄下的 ext 目錄后會發現有 mcrypt ，進入 mcrypt 目錄

#cd /ext/mcrypt

#phpize

注意：如果報 -bash:phpize not Found? 那么 yum install php-devel 就可以使phpize進行動態編譯安裝擴展

#./configure? -with-php-config=/usr/sbin/php/bin/php-config

#make && make install

出現：

----------------------------------------------------------------------Libraries have been installed in:?? /var/php-5.3.10/ext/mcrypt/modules

If you ever happen to want to link against installed librariesin a given directory, LIBDIR, you must either use libtool, andspecify the full pathname of the library, or use the `-LLIBDIR'flag during linking and do at least one of the following:?? - add LIBDIR to the `LD_LIBRARY_PATH' environment variable???? during execution?? - add LIBDIR to the `LD_RUN_PATH' environment variable???? during linking www.jbxue.com?? - use the `-Wl,-rpath -Wl,LIBDIR' linker flag?? - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries formore information, such as the ld(1) and ld.so(8) manual pages.----------------------------------------------------------------------

Build complete.Don't forget to run 'make test'.

Installing shared extensions:???? /usr/lib64/php/modules/查看：

# php -m

...

libxmlmbstringmcryptmysql...[Zend Modules]已安裝成功！

再次查看 phpinfo?，可以看到mcrypt 擴展詳情。

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