PHP Package - Possible package definition declarations

package.ini

[package]
name = MyVendor\MyLibrary
strict_types = 1
encoding = UTF-8

package.json

{
  "name": "MyVendor\\MyLibrary",
  "declare": {
    "strict_types": 1,
    "encoding": "UTF-8"
  }
}

package.php

<?php

declare package MyVendor\MyLibrary {
  strict_types = 1,
  encoding = "UTF-8"
}

package.toml

[[package]]
name = "MyVendor\\MyLibrary"
strict_types = 1
encoding = "UTF-8"

package.yaml

name: MyVendor\MyLibrary
strict_types: 1
encoding: UTF-8