查了一下资料使用 yum install php-mcrypt 安装mcrypt扩展时会提示没有安装包
Setting up Install Process No package php-mcrypt available. Error: Nothing to do
mcrypt 是加密扩展库，加载了它可以用他里面自带的22种加密解密算法
CentOS6 默认安装的是php5.3.2
默认的 redhat repos php中是没有 mcrypt 扩展的 根据红帽的官方消息（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.
解决方案：
从php 官网下载新的php 5.3 源码包后http://www.php.net/releases/，解压到本地目录 进入解压目录下的 ext 目录后会发现有 mcrypt ， 进入 mcrypt 目录
[root@weekend109 php-5.5.36]# cd ext/mcrypt
[root@weekend109 mcrypt]# phpize Configuring for: PHP Api Version: 20090626 Zend Module Api No: 20090626 Zend Extension Api No: 220090626
注意：如果报 -bash:phpize not Found 那么 yum install php-devel 就可以使phpize进行动态编译安装扩展
[root@weekend109 mcrypt]# ./configure -with-php-config=/usr/bin/php-config checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for a sed that does not truncate output... /bin/sed checking for cc... cc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether cc accepts -g... yes checking for cc option to accept ISO C89... none needed checking how to run the C preprocessor... cc -E checking for icc... no checking for suncc... no checking whether cc understands -c and -o together... yes checking for system library directory... lib checking if compiler supports -R... no checking if compiler supports -Wl,-rpath,... yes checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking for PHP prefix... /usr checking for PHP includes... -I/usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/php/ext -I/usr/include/php/ext/date/lib checking for PHP extension directory... /usr/lib/php/modules checking for PHP installed headers prefix... /usr/include/php checking if debug is enabled... no checking if zts is enabled... no checking for re2c... no configure: WARNING: You will need re2c 0.13.4 or later if you want to regenerate PHP parsers. checking for gawk... gawk checking for mcrypt support... yes, shared checking for libmcrypt version... >= 2.5.6 checking for mcrypt_module_open in -lmcrypt... no checking for mcrypt_module_open in -lmcrypt... yes checking for a sed that does not truncate output... (cached) /bin/sed checking for fgrep... /bin/grep -F checking for ld used by cc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B checking the name lister (/usr/bin/nm -B) interface... BSD nm checking whether ln -s works... yes checking the maximum length of command line arguments... 1966080 checking whether the shell understands some XSI constructs... yes checking whether the shell understands "+="... yes checking for /usr/bin/ld option to reload object files... -r checking for objdump... objdump checking how to recognize dependent libraries... pass_all checking for ar... ar checking for strip... strip checking for ranlib... ranlib checking command to parse /usr/bin/nm -B output from cc object... ok checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking for dlfcn.h... yes checking for objdir... .libs checking if cc supports -fno-rtti -fno-exceptions... no checking for cc option to produce PIC... -fPIC -DPIC checking if cc PIC flag -fPIC -DPIC works... yes checking if cc static flag -static works... no checking if cc supports -c -o file.o... yes checking if cc supports -c -o file.o... (cached) yes checking whether the cc linker (/usr/bin/ld) supports shared libraries... yes checking whether -lc should be explicitly linked in... no checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... no configure: creating ./config.status config.status: creating config.h config.status: executing libtool commands [root@weekend109 mcrypt]# make && make install /bin/sh /home/zzq/software/php-5.5.36/ext/mcrypt/libtool --mode=compile cc -I. -I/home/zzq/software/php-5.5.36/ext/mcrypt -DPHP_ATOM_INC -I/home/zzq/software/php-5.5.36/ext/mcrypt/include -I/home/zzq/software/php-5.5.36/ext/mcrypt/main -I/home/zzq/software/php-5.5.36/ext/mcrypt -I/usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/php/ext -I/usr/include/php/ext/date/lib -I/usr/local/include -DHAVE_CONFIG_H -g -O2 -c /home/zzq/software/php-5.5.36/ext/mcrypt/mcrypt.c -o mcrypt.lo libtool: compile: cc -I. -I/home/zzq/software/php-5.5.36/ext/mcrypt -DPHP_ATOM_INC -I/home/zzq/software/php-5.5.36/ext/mcrypt/include -I/home/zzq/software/php-5.5.36/ext/mcrypt/main -I/home/zzq/software/php-5.5.36/ext/mcrypt -I/usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/php/ext -I/usr/include/php/ext/date/lib -I/usr/local/include -DHAVE_CONFIG_H -g -O2 -c /home/zzq/software/php-5.5.36/ext/mcrypt/mcrypt.c -fPIC -DPIC -o .libs/mcrypt.o /bin/sh /home/zzq/software/php-5.5.36/ext/mcrypt/libtool --mode=compile cc -I. -I/home/zzq/software/php-5.5.36/ext/mcrypt -DPHP_ATOM_INC -I/home/zzq/software/php-5.5.36/ext/mcrypt/include -I/home/zzq/software/php-5.5.36/ext/mcrypt/main -I/home/zzq/software/php-5.5.36/ext/mcrypt -I/usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/php/ext -I/usr/include/php/ext/date/lib -I/usr/local/include -DHAVE_CONFIG_H -g -O2 -c /home/zzq/software/php-5.5.36/ext/mcrypt/mcrypt_filter.c -o mcrypt_filter.lo libtool: compile: cc -I. -I/home/zzq/software/php-5.5.36/ext/mcrypt -DPHP_ATOM_INC -I/home/zzq/software/php-5.5.36/ext/mcrypt/include -I/home/zzq/software/php-5.5.36/ext/mcrypt/main -I/home/zzq/software/php-5.5.36/ext/mcrypt -I/usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/php/ext -I/usr/include/php/ext/date/lib -I/usr/local/include -DHAVE_CONFIG_H -g -O2 -c /home/zzq/software/php-5.5.36/ext/mcrypt/mcrypt_filter.c -fPIC -DPIC -o .libs/mcrypt_filter.o /home/zzq/software/php-5.5.36/ext/mcrypt/mcrypt_filter.c: In function ‘php_mcrypt_filter_create’: /home/zzq/software/php-5.5.36/ext/mcrypt/mcrypt_filter.c:210: warning: passing argument 1 of ‘mcrypt_module_open’ discards qualifiers from pointer target type /usr/local/include/mutils/mcrypt.h:38: note: expected ‘char *’ but argument is of type ‘const char *’ /bin/sh /home/zzq/software/php-5.5.36/ext/mcrypt/libtool --mode=link cc -DPHP_ATOM_INC -I/home/zzq/software/php-5.5.36/ext/mcrypt/include -I/home/zzq/software/php-5.5.36/ext/mcrypt/main -I/home/zzq/software/php-5.5.36/ext/mcrypt -I/usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/php/ext -I/usr/include/php/ext/date/lib -I/usr/local/include -DHAVE_CONFIG_H -g -O2 -o mcrypt.la -export-dynamic -avoid-version -prefer-pic -module -rpath /home/zzq/software/php-5.5.36/ext/mcrypt/modules mcrypt.lo mcrypt_filter.lo -Wl,-rpath,/usr/local/lib -L/usr/local/lib -lmcrypt libtool: link: cc -shared .libs/mcrypt.o .libs/mcrypt_filter.o -L/usr/local/lib /usr/local/lib/libmcrypt.so -Wl,-rpath -Wl,/usr/local/lib -Wl,-soname -Wl,mcrypt.so -o .libs/mcrypt.so libtool: link: ( cd ".libs" && rm -f "mcrypt.la" && ln -s "../mcrypt.la" "mcrypt.la" ) /bin/sh /home/zzq/software/php-5.5.36/ext/mcrypt/libtool --mode=install cp ./mcrypt.la /home/zzq/software/php-5.5.36/ext/mcrypt/modules libtool: install: cp ./.libs/mcrypt.so /home/zzq/software/php-5.5.36/ext/mcrypt/modules/mcrypt.so libtool: install: cp ./.libs/mcrypt.lai /home/zzq/software/php-5.5.36/ext/mcrypt/modules/mcrypt.la libtool: finish: PATH="/usr/local/jdk1.7.0_79/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/zzq/app/hadoop-2.4.1/bin:/home/zzq/app/hadoop-2.4.1/sbin:/home/zzq/bin:/sbin" ldconfig -n /home/zzq/software/php-5.5.36/ext/mcrypt/modules ---------------------------------------------------------------------- Libraries have been installed in: /home/zzq/software/php-5.5.36/ext/mcrypt/modules If you ever happen to want to link against installed libraries in a given directory, LIBDIR, you must either use libtool, and specify 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 - 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 for more 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/lib/php/modules/ 如果make && make install 报错/home/zzq/software/php-5.5.36/ext/mcrypt/mcrypt.c:283: error: ‘PHP_FE_END’ undeclared here (not in a function) make: *** [mcrypt.lo] Error 1
源码有错执行这个：
[root@weekend109 mcrypt]# sed -i 's|PHP_FE_END|{NULL,NULL,NULL}|' ./*.c [root@weekend109 mcrypt]# sed -i 's|ZEND_MOD_END|{NULL,NULL,NULL}|' ./*.c
编辑php.ini
[root@weekend109 mcrypt]# vim /etc/php.ini加入mcrypt.so， mcrypt.so默认在/usr/lib/php/modules/里面
extension_dir = "/usr/lib/php/modules/" extension = "mcrypt.so"用
php -m
能查看到mcrypt就成功了
网页上也能看到
