environment-variable.md

Environment Variable

Set environment variables

Terminal	Command	Test in Terminal
powershell windows	$env:TEST="Bonjour tout le monde"	$env:TEST
cmd windows	SET TEST=Bonjour tout le monde	ECHO %TEST%
shell linux	export TEST="Bonjour tout le monde"	echo $TEST
Heroku	heroku config:set TEST="Bonjour tout le monde"	heroku config

Read the environment variable with the development language

Language	Command
node	const secret = process.env.TEST
PHP	$_ENV["TEST"]

Execute PHP file to put your ouwn ENV VARIABLES

In an env.php file :

putenv("HOST=localhost");
putenv("PORT=3306");
putenv("LOGIN=root");
putenv("PWD=");
putenv("DB=my_database");
var_dump(getenv("HOST"), getenv("PORT"), getenv("LOGIN"), getenv("PWD"), getenv("DB"));

To get the variable, use the function getenv(HOST);.