Apache/nginx setting, adding $_server Server environment variables for PHP

Demand

在PHP开发中为了区分线上生产环境还是本地开发环境，如果我们能通过判断$_SERVER['RUNTIME_ENVIROMENT']为 'DEV'还是'PRO'来区分该多好，可惜的是$_SERVER数组里面根本没有RUNTIME_ENVIROMENT这个元素。

First, through the Nginx Fastcgi_param to set

In the Nginx configuration file, it can be set in the Nginx profile nginx.conf, or in a separate site configuration environment, such as: www.tomener.com.conf

Add the appropriate configuration information in the Configure Environment Server segment location:

location ~ \.php($|/) {    try_files         $uri =404;    fastcgi_pass      unix:/tmp/php-cgi.sock;    fastcgi_index     index.php;    include           fastcgi_params;    fastcgi_param     SCRIPT_FILENAME  $document_root$fastcgi_script_name;    fastcgi_param     RUNTIME_ENVIROMENT 'PRO'; # PRO or DEV}

Here only added Fastcgi_param runtime_enviroment ' PRO ' a value, more can be added in the back

Then reboot and restart Nginx.

nginx -s reload

Second, through the PHP main configuration file php-fpm.conf to set

This setting must be placed in the main configuration file php-fpm.conf, can not be placed in the include directive settings sub-configuration file, or will be error: "array is not allowed in the global section"

My php-fpm.conf position is in/usr/local/php/etc/php-fpm.conf.

Add directly to the configuration file:

env[RUNTIME_ENVIROMENT] = 'PRO'

Restart PHP-FPM after adding

service restart php-fpm

After adding the $_server variable value in the above 2 ways, we can get the corresponding variable value directly in the PHP file by $_server.

However, it is said that the configuration information through the Nginx Fastcgi_param to set, when Nginx and PHP interaction, will bring a lot of data transfer.

Apache Set Environment variables

SetEnv 变量名 变量值

  
   
    
       ServerAdmin webmaster@demo.com    DocumentRoot "e:\wwwroot\demo"    ServerName my.demo.com    ErrorLog "logs/my.demo.com-error.log"    CustomLog "logs/my.demo.com-access.log" common    SetEnv RUNTIME_ENVIROMENT DEV    
   
    
     
            Options Indexes FollowSymLinks        AllowOverride All        Require all granted    
   
    
  
   

Reference Documentation:

http://man.chinaunix.net/newsoft/ApacheManual/mod/mod_env.html#setenv

The above describes the Apache/nginx for PHP settings, add $_server server environment variables, including the aspects of the content, I hope to be interested in PHP tutorial friends helpful.

