PHP源码安装

首先去官网下载要安装版本的安装包
http://php.net
我下载的是php-7.2.4.tar.bz2
去下载文件目录：

season@ubuntu:~/Downloads$ tar -xjvf php-7.2.4.tar.bz2
season@ubuntu:~/Downloads/php-7.2.4$ cd php-7.2.4/
season@ubuntu:~/Downloads/php-7.2.4$ ./configure --prefix=/usr/local/php
season@ubuntu:~/Downloads/php-7.2.4$ sudo make 
season@ubuntu:~/Downloads/php-7.2.4$ sudo make install

tips1:
如果出现libxml2不存在 需要执行：

season@ubuntu:~/Downloads/php-7.2.4$ sudo apt-get install libxml2-dev

tips2:
默认没有php.ini，所以我们需要从下载的源码包里面复制到lib文件中

season@ubuntu:/usr/local/php/bin$ ./php -i |grep php.ini
Configuration File (php.ini) Path => /usr/local/php/lib
season@ubuntu:~/Downloads/php-7.2.4$ sudo cp php.ini-development /usr/local/php/lib/
season@ubuntu:/usr/local/php/etc$ sudo mv php.ini-development  php.ini