PHPCompatibility检测php版本语法兼容

直接上步骤：

 cd /datas/htdocs/
 mkdir PHPCompatibility
 cd PHPCompatibility/
 curl -s http://getcomposer.org/installer | php
 ./composer.phar require "squizlabs/php_codesniffer=2.*"
 cd vendor/squizlabs/php_codesniffer/CodeSniffer/Standards
 git clone https://github.com/wimg/PHPCompatibility.git
 cd /datas/htdocs/PHPCompatibility/
 ./vendor/bin/phpcs -i
 ./vendor/bin/phpcs --standard=PHPCompatibility --runtime-set testVersion 7.1 /datas/htdocs/thinkphp/

上面第10行是那thinkphp做测试，结果类似：

 FILE: ...s/htdocs/thinkphp/Library/Vendor/TemplateLite/class.compiler.php
 ----------------------------------------------------------------------
 FOUND  ERROR AND  WARNING AFFECTING  LINES
 ----------------------------------------------------------------------
   | ERROR   | preg_replace() - /e modifier is deprecated since PHP
      |         | 5.5 and removed since PHP 7.0
 ----------------------------------------------------------------------

更多PHPCompatibility相关内容，请参考 https://www.sitepoint.com/quick-intro-phpcompatibility-standard-for-phpcs-are-you-php7-ready/

---------------------2017-07-18-----------------------

提供一个压缩包，直接解压可用 https://pan.baidu.com/s/1c1JX5DY