php5安装
PHP官网www.php.net当前主流版本为5.6/7.1
cd /usr/local/src/
wget http://cn2.php.net/distributions/php-5.6.30.tar.gz
tar zxf php-5.6.30.tar.gz
cd php-5.6.30
./configure --prefix=/usr/local/php --with-apxs2=/usr/local/apache2.4/bin/apxs --with-config-file-path=/usr/local/php/etc --with-mysql=/usr/local/mysql --with-pdo-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-libxml-dir --with-gd --with-jpeg-dir --with-png-dir --with-freetype-dir --with-iconv-dir --with-zlib-dir --with-bz2 --with-openssl --with-mcrypt --enable-soap --enable-gd-native-ttf --enable-mbstring --enable-sockets --enable-exif
--prefix= 指定安装目录 --with-apxs2=Apache的工具，不需要人工的干涉，自动的把扩展模块放到modules模块里，并且在配置文件里加一行loadmoduls，能够httpd -M的时候把模块加载出来。所以要先安装Apache，要指定这个工具地址
make && make install
cp php.ini-production /usr/local/php/etc/php.ini//配置文件路径/usr/local/php/etc因为这下面是空的（开发环境可使用php.ini-development）
/usr/local/php/bin/php -i|less//查看php相关信息
Loaded Configuration File => /usr/local/php/etc/php.ini
ls /usr/local/php/bin/ //php核心二进制文件
pear peardev pecl phar phar.phar php php-cgi php-config phpize
du -sh /usr/local/apache2.4/modules/libphp5.so //php扩展模块。Apache需要
37M /usr/local/apache2.4/modules/libphp5.so
/usr/local/php/bin/php -m //查看加载的模块有哪些（显示静态文件，也可动态扩展模块安装）
# du -sh /usr/local/php
77M /usr/local/php
# du -sh /usr/local/apache2/modules/libphp5.so
35M /usr/local/apache2/modules/libphp5.so Apache结合php依赖libphp5
# /usr/local/php/bin/php –m 查看加载的模块（静态的）
bz2
Core
ctype
date
Apache配置文件
# vi /usr/local/apache2/conf/httpd.conf
错误:
1.error: xml2-config not found. Please check your libxml2 installation.
解决办法：
yum list|grep libxml2
yum install -y libxml2-devel.x86_64
2.error: Cannot find OpenSSL's
yum list|grep OpenSSL -i
yum install -y openssl-devel.x86_64
3.error: Please reinstall the BZip2 distribution
yum install -y bzip2-devel.x86_64
4.error: jpeglib.h not found.
yum install -y libjpeg-turbo-devel.x86_64
5.error: png.h not found.
yum install -y libpng-devel.x86_64
6.error: freetype-config not found.
yum install -y freetype-devel.x86_64
7.error: mcrypt.h not found. Please reinstall libmcrypt.
yum install -y epel-release
yum install -y libmcrypt-devel
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