Nginx 设置 PHP中的$

我们要区分不同的环境，php中很多人设置在$_SERVER中，比如ci（coderigniter)
define(‘ENVIRONMENT’, isset($_SERVER[‘CI_ENV’]) ? $_SERVER[‘CI_ENV’] : ‘development’);
这个ci_env就是我们自己定义的。通常我们会定义在apache或者nginx中。

打开一个nginx的网站配置,在location中加入你想要加的变量：

location ~ \.php$ {
        try_files      $uri =404;
        root           /usr/share/nginx/html/tanteng.me/public;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        fastcgi_param  MYENV 'DEV';        #这个就是你要加的变量
        include        fastcgi_params;
}

这里的fastcgi_param MYENV ‘DEV’，就是新加的一行语句。
在PHP中打印$_SERVER看看：

array (size=33)
  'USER' => string 'apache' (length=6)
  'HOME' => string '/usr/share/httpd' (length=16)
  'HTTP_ACCEPT_LANGUAGE' => string 'zh-CN,zh;q=0.9' (length=14)
  'HTTP_ACCEPT_ENCODING' => string 'gzip, deflate' (length=13)
  'HTTP_ACCEPT' => string 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8' (length=85)
  'HTTP_USER_AGENT' => string 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36' (length=114)
  'HTTP_UPGRADE_INSECURE_REQUESTS' => string '1' (length=1)
  'HTTP_CONNECTION' => string 'keep-alive' (length=10)
  'HTTP_HOST' => string 'test.com' (length=8)
  'REDIRECT_STATUS' => string '200' (length=3)
  'SERVER_NAME' => string 'test.dev' (length=8)
  'SERVER_PORT' => string '80' (length=2)
  'SERVER_ADDR' => string '10.0.2.15' (length=9)
  'REMOTE_PORT' => string '53980' (length=5)
  'REMOTE_ADDR' => string '10.0.2.2' (length=8)
  'SERVER_SOFTWARE' => string 'nginx/1.10.1' (length=12)
  'GATEWAY_INTERFACE' => string 'CGI/1.1' (length=7)
  'REQUEST_SCHEME' => string 'http' (length=4)
  'SERVER_PROTOCOL' => string 'HTTP/1.1' (length=8)
  'DOCUMENT_ROOT' => string '/usr/share/nginx/html/test' (length=26)
  'DOCUMENT_URI' => string '/index.php' (length=10)
  'REQUEST_URI' => string '/' (length=1)
  'SCRIPT_NAME' => string '/index.php' (length=10)
  'CONTENT_LENGTH' => string '' (length=0)
  'CONTENT_TYPE' => string '' (length=0)
  'REQUEST_METHOD' => string 'GET' (length=3)
  'QUERY_STRING' => string '' (length=0)
  'SCRIPT_FILENAME' => string '/usr/share/nginx/html/test/index.php' (length=36)
  'MYENV' => string 'DEV' (length=3)    #这个就是我们刚加的变量
  'FCGI_ROLE' => string 'RESPONDER' (length=9)
  'PHP_SELF' => string '/index.php' (length=10)
  'REQUEST_TIME_FLOAT' => float 1531473189.9756
  'REQUEST_TIME' => int 1531473189

Nginx 设置 PHP中的$_SERVER 变量

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