How the environment variables in the Lumen/Laravel. env file take effect
The. env file can be used to customize any other valid environment variables. You can call env (), $ _ SERVER, or $ _ ENV to obtain the variables. So how does env () load these
The. env file can customize any other valid environment variables and can be
call env () or $_server or $_env To get the variable. So how does env () load into these variables? In Lumen's vendor/laravel/lumen-framework/src/helpers.php, we can see
Environment variable: $ _ ENV note: it is used in PHP410 and later versions. for earlier versions, $ HTTP_ENV_VARS is used. when the parser is running, these variables change from environment variables to PHP global variable namespace, many of which
PHP $ _ ENV variable $ _ ENV is an array containing server-side environment variables. It is a super global variable in PHP. we can directly access it anywhere in the PHP program. $ _ ENV only passively accepts server-side environment variables and
what is. Env
The. env file is located under the project root as the Global environment configuration file.
Environment variables are loaded through the. env file and automatically invoked via Getenv (), $_env, and $_server.This is a PHP version of
PHP $ _ ENV variable
$ _ ENV is an array containing server environment variables. It is a super global variable in PHP. We can directly access it anywhere in the PHP program.
$ _ ENV only passively accepts server-side environment variables and
You can use the _ SERVER variable and the _ ENV variable. Below are the php variables in my phpinfo: _ SERVER ["SCRIPT_NAME"]/php/index. php_SERVER ["HTTP_COOKIE"] cdb_sid = login ["AUTH_PASSWORD"] no value_SERVER ["AUTH_TYPE"] no value_SERVER
PHP Tutorial Configuration Chinese Narration
Let's see what you see, php.ini.
[PHP]
;;;;;;;;;;;; WARNING;;;;;;;;;;;;; This is the default settings file for new PHP installations.; By default, PHP installs itself with a configuration suitable for;
Predefined variable SERVER variable: $ _ SERVER Note: Used in PHP4.1.0 and later versions. In earlier versions, $ HTTP_SERVER_VARS is used. $ _ SERVER is an array containing headers, paths, and scriptlocations. The object of the array is created by
PHP constants and variables. PHP constants and variables [constants] can be defined using the define () function. after PHP5.3.0, you can use the const keyword to define constants outside the class definition. Once a constant is set, PHP constants
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