diff --git a/nspl/a.php b/nspl/a.php
index 017f2e0..8b0a782 100644
--- a/nspl/a.php
+++ b/nspl/a.php
@@ -344,7 +344,7 @@ function last($sequence)
     }
 
     if (is_array($sequence)) {
-        return $sequence[count($sequence) - 1];
+        return end($sequence);
     }
     else {
         foreach ($sequence as $item);
diff --git a/nspl/args.php b/nspl/args.php
index 54ea26a..a2df621 100644
--- a/nspl/args.php
+++ b/nspl/args.php
@@ -654,7 +654,7 @@ public static function getFor($type, $onlyOr = false)
 
         $default = class_exists($type) || interface_exists($type)
             ? $type
-            : implode(' ', array_map('strtolower', preg_split('/(?=[A-Z])/', end(explode('\\', $type)))));
+            : implode(' ', array_map('strtolower', preg_split('/(?=[A-Z])/', a\last(explode('\\', $type)))));
 
         return a\value(self::$messages, $type, 'be ' . $default);
     }
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 01f5f5b..a94571d 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -1,4 +1,6 @@
 <?php
 
+error_reporting(E_STRICT);
+
 require_once '../vendor/autoload.php';
 require_once '../autoload.php';