Differential D20988 Diff 50015 src/utils/PhutilExecutionEnvironment.php

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	<?php			<?php

	/**			/**
	* Get information about the current execution environment.			* Get information about the current execution environment.
	*/			*/
	final class PhutilExecutionEnvironment extends Phobject {			final class PhutilExecutionEnvironment extends Phobject {

	public static function getOSXVersion() {			public static function getOSXVersion() {
	if (php_uname('s') != 'Darwin') {			if (php_uname('s') != 'Darwin') {
	return null;			return null;
	}			}

	return php_uname('r');			return php_uname('r');
	}			}

				/**
				* If the PHP configuration setting "variables_order" does not include "E",
				* the `$_ENV` superglobal is not populated with the containing environment.
				* For details, see T12071.
				*
				* This can be fixed by adding "E" to the configuration, but we can also
				* repair it ourselves by re-executing a subprocess with the configuration
				* option defined to include "E". This is clumsy, but saves users from
				* needing to go find and edit their PHP files.
				*
				* @return void
				*/
				public static function repairMissingVariablesOrder() {
				$variables_order = ini_get('variables_order');
				$variables_order = strtoupper($variables_order);

				if (strpos($variables_order, 'E') !== false) {
				// The "variables_order" option already has "E", so we don't need to
				// repair $_ENV.
				return;
				}

				list($env) = execx(
				'php -d variables_order=E -r %s',
				'echo json_encode($_ENV);');
				$env = phutil_json_decode($env);

				$_ENV = $_ENV + $env;
				}

	}			}