test1/public/drupal-8.3.1/vendor/sebastian/environment/README.md

Environment

This component provides functionality that helps writing PHP code that has runtime-specific (PHP / HHVM) execution paths.

Installation

To add Environment as a local, per-project dependency to your project, simply add a dependency on sebastian/environment to your project's composer.json file. Here is a minimal example of a composer.json file that just defines a dependency on Environment 1.0:

{
    "require": {
        "sebastian/environment": "1.0.*"
    }
}

Usage

<?php
use SebastianBergmann\Environment\Runtime;

$runtime = new Runtime;

var_dump($runtime->getNameWithVersion());
var_dump($runtime->getName());
var_dump($runtime->getVersion());
var_dump($runtime->getBinary());
var_dump($runtime->isHHVM());
var_dump($runtime->isPHP());
var_dump($runtime->hasXdebug());
var_dump($runtime->canCollectCodeCoverage());

Output on PHP

$ php --version
PHP 5.5.8 (cli) (built: Jan  9 2014 08:33:30)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
    with Xdebug v2.2.3, Copyright (c) 2002-2013, by Derick Rethans


$ php example.php
string(9) "PHP 5.5.8"
string(3) "PHP"
string(5) "5.5.8"
string(14) "'/usr/bin/php'"
bool(false)
bool(true)
bool(true)
bool(true)

Output on HHVM

$ hhvm --version
HipHop VM 2.4.0-dev (rel)
Compiler: heads/master-0-ga98e57cabee7e7f0d14493ab17d5c7ab0157eb98
Repo schema: 8d6e69287c41c1f09bb4d327421720d1922cfc67


$ hhvm example.php
string(14) "HHVM 2.4.0-dev"
string(4) "HHVM"
string(9) "2.4.0-dev"
string(42) "'/usr/local/src/hhvm/hphp/hhvm/hhvm' --php"
bool(true)
bool(false)
bool(false)
bool(true)