fix array to string conversion

PERBILITY · Jan 13, 2020 · b776561 · b776561
1 parent dad30f3
commit b776561
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/MathParser/Math.php b/lib/MathParser/Math.php
@@ -221,7 +221,8 @@ private function assertVariablesAreNumbersOrNull(array $variables)
     private function assertVariableIsNumberOrNull($variable)
     {
         if (!is_int($variable) && !is_float($variable) && !($variable === null)) {
-            throw new \InvalidArgumentException('provided variable is not a number or null. found: ' . $variable);
+            throw new \InvalidArgumentException('provided variable is not a number or null. found: ' .
+                gettype($variable));
         }
     }
 }