Merge pull request 'Add failsafe for locating project root' (#22) from gravel/sessioncommunities.online:php-getenv-failsafe into main

Reviewed-on: #22

php/getenv.php

@@ -1,11 +1,22 @@
 <?php
 	$PROJECT_ROOT = dirname(__FILE__);
 	
+	(function(){
+		global $PROJECT_ROOT;
+
+		$root_previous = "";
+
 		while (!file_exists("$PROJECT_ROOT/.phpenv")) {
-		if ($PROJECT_ROOT == "/" || $PROJECT_ROOT == "") 
+			if (
+				$PROJECT_ROOT == "/" ||
+				$PROJECT_ROOT == "" ||
+				$PROJECT_ROOT == $root_previous
+			) 
 				throw new RuntimeException("Could not find .phpenv file.");
+			$root_previous = $PROJECT_ROOT;
 			$PROJECT_ROOT = dirname($PROJECT_ROOT);
 		}
+	})();
 
 	require_once "$PROJECT_ROOT/.phpenv";