一、环境准备（lamp环境:linux+apache+php+mysql)
1、安装php之前，首先要检查一下相关lib库
rpm -qa zlib libxml libjpeg freetype libpng gd curl libiconv zlib-devel libxml2-devel libjpeg-devel freetype-devel libpng-devel gd-devel curl-devel
如果没有安装的，要安装上 yum install zlib libxml libjpeg freetype libpng gd curl libiconv zlib-devel libxml2-devel libjpeg-devel freetype-devel libpng-devel gd-devel curl-devel
yum install openssl-devel -y
yum install libxslt-devel -y
2、安装libiconv,下载安装包libiconv-1.14.tar.gz，
安装
tar zxvf libiconv-1.14.tar.gz
cd libiconv-1.14
./configure --prefix=/usr/local/libiconv
make
make install
安装libmcrypt(非必须）
tar zxvf libmcrypt-2.5.8.tar.gz
cd libmcrypt-2.5.8
./configure
make
make install
sleep 2
/sbin/ldconfig
cd libltdl/
./configure --enable-ltdl-install
make
make install
cd ../../
安装mhash
tar zvxf mhash-0.9.9.9.tar.gz
cd mhash-0.9.9.9
./configure
make
make install
sleep 2
cd ../
rm -f /usr/lib64/libmcrypt.*
rm -f /usr/lib64/libmhash*
ln -s /usr/local/lib64/libmcrypt.la /usr/lib64/libmcrypt.la
ln -s /usr/local/lib64/libmcrypt.so /usr/lib64/libmcrypt.so
ln -s /usr/local/lib64/libmcrypt.so.4 /usr/lib64/libmcrypt.so.4
ln -s /usr/local/lib64/libmcrypt.so.4.4.8 /usr/lib64/libmcrypt.so.4.4.8
ln -s /usr/local/lib64/libmhash.a /usr/lib64/libmhash.a
ln -s /usr/local/lib64/libmhash.la /usr/lib64/libmhash.la
ln -s /usr/local/lib64/libmhash.so /usr/lib64/libmhash.so
ln -s /usr/local/lib64/libmhash.so.2 /usr/lib64/libmhash.so.2
ln -s /usr/local/lib64/libmhash.so.2.0.1 /usr/lib64/libmhash.so.2.0.1
ln -s /usr/local/lib64/libmcrypt-config /usr/lib64/libmcrypt-config
安装mcrypt:
tar zxvf mcrypt-2.6.8.tar.gz
cd mcrypt-2.6.8/
/sbin/ldconfig
./configure LD_LIBRARY_PATH=/usr/local/lib
make
make install
cd ../
sleep 2
3、安装好apache和mysql
二、安装php
1、下载安装包php-5.3.27.tar.gz
2、解压并进入目录
tar zxvf php-5.3.27.tar.gz
cd php-5.3.27
3、安装
编译
./configure
--prefix=/application/php5.3.27 php安装路径
--with-apxs2=/application/apache/bin/apxs apache下的apxs路径，通过apxs增加php扩展模块到apache中
--with-mysql=/application/mysql mysql安装路径
--with-xmlrpc
--with-openssl
--with-zlib
--with-freetype-dir
--with-gd
--with-jpeg-dir
--with-png-dir
--with-iconv=/usr/local/libiconv
--enable-short-tags
--enable-sockets
--enable-zend-multibyte
--enable-soap
--enable-mbstring
--enable-static
--enable-gd-native-ttf
--with-curl
--with-xsl
--enable-ftp
--with-libxml-dir
编译完成后，make && make install
4、创建链接
ln -s /application/php5.3.27/ /application/php
5、检查
安装后，查看/application/apache/modules/ ，可以看到由apxs将php模块插入apache中
并且在apache配置文件中，也有相关配置
php的配置文件由2个，一个时开发环境，一个生产环境。他们的区别在于开发环境很多错误日志可以显示出来。生产环境不让显示
php默认配置文件在/application/php/lib/php.ini
拷贝一份生产环境配置文件替换默认配置文件 cp php.ini-production /application/php/lib/php.ini