linux - Ubuntu: How PHP can read Environment Variable -

I am running on Ubuntu Server 14.04.

I have a PHP file that is required to be read

If you Run a PHP file on the Ubuntu server (like test.php) and you need to read and use an environment variable, you need to do the following:

1. edit Bashrc file (if you run bash as a shell)

     # Export to the following: Export DB_NAME = "My database name "  Important   Do not forget the word export ! 
    

2. Save the file and exit.

3. Click on the following command:

     source ~ / .bashrc  

4. Check that the Environment variable is valid

     $ DB_NAME echo  

   should print it:

     My database Name  

5. Edit your PHP file:

   & lt ;? Php $ db = getenv ('DB_NAME'); // Name of database resonance "database name: $ db \ r \ n"? & Gt;

6. Run the PHP file

     php test.php  

   should print it

     Database Name: My Database Name