			foreach($paths as $path)
			{
				// Convert wild-cards to RegEx
				$path = str_replace(array(':any', '*'), '.*', str_replace(':num', '[0-9]+', $path));

				// Does the RegEx match?
				if (!empty($_SERVER['HTTP_HOST']) AND preg_match('#^'.$path.'$#', $_SERVER['HTTP_HOST']))
				{
					define('ENVIRONMENT', $env);
					break 2;
				}
			}
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.