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<?php
namespace Nubs\Sensible\Strategy;
use Habitat\Environment\Environment;
/**
* Checks a given environment variable and returns its value if not null.
*/
class EnvironmentVariableStrategy implements StrategyInterface
{
/** @type string The environment variable name. */
private $_name;
/** @type \Habitat\Environment\Environment The environment wrapper. */
private $_environment;
* Initialize the strategy that checks an environment variable for a
* command.
*
* @param string $name The environment variable name to lookup.
* @param \Habitat\Environment\Environment $environment The environment
* variable wrapper. Defaults to null which just uses PHP's built-in
* getenv.
public function __construct($name, Environment $environment = null)
$this->_name = $name;
$this->_environment = $environment;
}
* Returns the command as found in the environment variable.
* @return string|null The command, or null if the environment variable
* wasn't set.
public function get()
$result = $this->_environment ? $this->_environment->getenv($this->_name) : getenv($this->_name);
return $result !== false ? $result : null;
nubs /
sensible
