each() replaced with foreach()

https://wiki.php.net/rfc/deprecations_php_7_2

Author: dg

src/Http/RequestFactory.php

@@ -111,7 +111,7 @@ public function createHttpRequest(): Request
 		$reChars = '#^[' . self::CHARS . ']*+\z#u';
 		if (!$this->binary) {
 			$list = [&$query, &$post, &$cookies];
-			while ([$key, $val] = each($list)) {
+			foreach ($list as $key => &$val) {
 				foreach ($val as $k => $v) {
 					if (is_string($k) && (!preg_match($reChars, $k) || preg_last_error())) {
 						unset($list[$key][$k]);
@@ -145,7 +145,7 @@ public function createHttpRequest(): Request
 			}
 		}
 
-		while ([, $v] = each($list)) {
+		foreach ($list as &$v) {
 			if (!isset($v['name'])) {
 				continue;