Added a simple php output format

[martinwittmann]

A use-case which I find very useful is to add a php output format.

This allows users to generate a simple php file, that can be included into existing projects which eliminates the need to vlucas/dotenv and marginally improves performance since the .env files are not parsed at every http request.

[ko1nksm]

Hi @martinwittmann, thanks for the contribution!

I ran this and got the following

$ ./shdotenv -f php
<?php

function __local_env() {
  $env = [];
  $env["VAR"] = "123";

  return $env;
}

Apparently it is a function that returns (the contents of .env) as an associative array.

Given that shdotenv is a tool for setting environment variables, I am thinking that the following output would be good. Assignments to arbitrary variables should be outside the scope of this project.

$ ./shdotenv -f php
<?php
putenv('VAR=123');
?>

Note:

• It seems that $_ENV is no longer available in recent versions of PHP.
• I know that the ?> at the end can be omitted, but I see no reason to omit it here.
• The arguments of putenv must be correctly escaped so that they can be safely read.
• If you want to assign to an associative array instead of an environment variable, it would be better to use the JSON format, for example.
• shdotenv --help also needs to add php

However, what you really want seems to be a JSON to PHP code conversion tool. That could probably be easily made using PHP's var_export function.