引言
服务器用的是lnmp一键安装包，但是php版本是5.5。项目用的是TP5.1需要php5.6的环境。
好慌！
进行升级操作
进入lnmp安装环境
./upgrade.sh php
然后输入php版本号
5.6.39
然后程序就可以下载升级了，等待了将近5分钟的时间，我的内心是煎熬的，因为这个是线上的服务器，出错了，是要掉脑袋的。
Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-non-zts-20131226/
Installing PHP CLI binary: /usr/local/php/bin/
Installing PHP CLI man page: /usr/local/php/php/man/man1/
Installing PHP FPM binary: /usr/local/php/sbin/
Installing PHP FPM config: /usr/local/php/etc/
Installing PHP FPM man page: /usr/local/php/php/man/man8/
Installing PHP FPM status page: /usr/local/php/php/php/fpm/
Installing PHP CGI binary: /usr/local/php/bin/
Installing PHP CGI man page: /usr/local/php/php/man/man1/
Installing build environment: /usr/local/php/lib/php/build/
Installing header files: /usr/local/php/include/php/
Installing helper programs: /usr/local/php/bin/
program: phpize
program: php-config
Installing man pages: /usr/local/php/php/man/man1/
page: phpize.1
page: php-config.1
Installing PEAR environment: /usr/local/php/lib/php/
[PEAR] Archive_Tar - installed: 1.4.3
[PEAR] Console_Getopt - installed: 1.4.1
[PEAR] Structures_Graph- installed: 1.1.1
[PEAR] XML_Util - installed: 1.4.2
[PEAR] PEAR - installed: 1.10.5
Warning! a PEAR user config file already exists from a previous PEAR installation at '/root/.pearrc'. You may probably want to remove it.
Wrote PEAR system config file at: /usr/local/php/etc/pear.conf
You may want to add: /usr/local/php/lib/php to your php.ini include_path
/root/lnmp1.3-full/src/php-5.6.39/build/shtool install -c ext/phar/phar.phar /usr/local/php/bin
ln -s -f phar.phar /usr/local/php/bin/phar
Installing PDO headers: /usr/local/php/include/php/ext/pdo/
Copy new php configure file.
Modify php.ini......
config-set succeeded
config-set succeeded
All settings correct for using Composer
Downloading...
Composer (version 1.8.0) successfully installed to: /usr/local/bin/composer
Use it: php /usr/local/bin/composer
Install ZendGuardLoader for PHP 5.6...
zend-loader-php5.6-linux-x86_64.tar.gz [found]
Write ZendGuardLoader to php.ini......
Download Opcache Control Panel...
Creating new php-fpm configure file......
Copy php-fpm init.d file......
+-------------------------------------------+
| Manager for LNMP, Written by Licess |
+-------------------------------------------+
| http://lnmp.org |
+-------------------------------------------+
Starting LNMP...
Starting nginx... done
Starting MySQL. [确定]
Starting php-fpm done
======== upgrade php completed ======
升级完成，服务恢复正常，小心脏终于稳定了。
=======
后续 ，然后并没有那么顺利，项目布上去之后报错。莫名其妙。
后来又将php.ini进行了配置。
安装了redis的支持。
将nginx进行了些许配置。
最终才正常。
更改环境真是让人崩溃，因为不知道是否能搞定它！！！安装环境就不一样了，安装后，不成功，大不了重装。