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README.md

Secure Env PHP

Build Status

Env encryption and decryption library.
Prevent committing and exposing vulnerable plain-text environment variables in production environments.

You can view a more in-depth tutorial on Medium.

Installation

Install secure-env-php using Composer

composer require johnathanmiller/secure-env-php

.env

Create an .env file in your project with environment variables.

DB_HOST=localhost
DB_USER=username
DB_PASS=password

Encrypting

Execute vendor/bin/encrypt-env in your project directory and follow the command prompts to encrypt your .env file. You can press enter to accept the default values in the square brackets.

Encryption Prompts

Encryption Prompts

  1. Path to your .env file you want to encrypt.
  2. Input "y" or "yes" to generate a new secret key file. Otherwise input path to secret key file when prompted.
  3. Your choice of encryption algorith or accept the default provided. For a list of supported algorithms visit: https://secure.php.net/manual/en/function.openssl-get-cipher-methods.php.
  4. Path to save the encrypted environment file.

After you've successfully completed the prompts you should now have an encrypted environment file.

Import and Instantiate

Import into namespace environment

use SecureEnvPHP\SecureEnvPHP;

Instantiate class with your decryption arguments. First argument is path to your encrypted env file, second argument is path to your secret key file, and optionally a third argument can be set for your choice of encryption algorithm, (this needs to match the algorithm you used to encrypt your env file).

(new SecureEnvPHP())->parse('.env.enc', '.env.key');

Decryption Options

parameter description default
1. path Path to encrypted file .env.enc
2. secret Path to key file or secret string
3. algo Encryption algorithm aes256

Retrieving Env Values

After instantiating the SecureEnvPHP class you can retrieve your values in your project by calling getenv with your variable names, such as getenv('DB_HOST').

Full Example

<?php

require_once './vendor/autoload.php';

use SecureEnvPHP\SecureEnvPHP;

(new SecureEnvPHP())->parse('.env.enc', '.env.key');

$host = getenv('DB_HOST');

Acknowledgements

Secure Env PHP is inspired by https://github.com/kunalpanchal/secure-env for NodeJS.

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