Simple, dependency-free and fast class handling an environment file to $_ENV, $_SERVER and getenv()

Initializes the instance setting the file path

$oDotenv = new \RayanLevert\Dotenv\Dotenv('/file/to/.dotenv');

An exception RayanLevert\Dotenv\Exception will be thrown if the file is not readable

Reads the file content and loads in $_ENV, $_SERVER et getenv(), values of each variable

$oDotenv->load();

For each new line found, tries to set to the name of the variable its value after the = sign

TEST_VALUE1=value1 => $_ENV['TEST_VALUE1'] = value1

If the value is a primitive value, the value will be casted to the PHP userland

NAME=1 => $_ENV['NAME'] = 1
NAME=23.34 => $_ENV['NAME'] = 23.34 (float values will be casted only with a dot .)
NAME=true => $_ENV['NAME'] = true
NAME=false => $_ENV['NAME'] = false
NAME=string value => $_ENV['NAME'] = 'string value'

Multiline variables are also available ! (separated by \n), double quotes (") will be used

    NAME="This is a variable
    with
    multiple
    lines"

Nested variables, declared beforehand via the same file or getenv() (set via the OS or docker for example)

    NESTED=VALUE
    NAME=${NESTED}
    NAME2=${NESTED}/path

    $_ENV['NESTED'] = 'VALUE'
    $_ENV['NAME'] = 'VALUE'
    $_ENV['NAME2'] = 'VALUE/path'

Throw an RayanLevert\Dotenv\Exception if at least one variable is not present in the $_ENV superglobal

$oDotenv->required('FIRST_REQUIRED', 'SECOND_REQUIRED');

Worth if we want required variables for application purposes, an exception will be thrown to prevent some logic error