Fix implicit array creation

tests/MD_STD_IN_Test.php

@@ -81,6 +81,7 @@ public static function invalid_longitude_provider():array {
             [-185, MDCoordinateOutOfRange::class],
         ];
 
+        $output = [];
         foreach ($values as $value) {
             $output[gettype($value[0]) . ': ' . var_export($value[0], true)] = $value;
         }
@@ -130,6 +131,7 @@ public static function invalid_latitude_provider():array {
             [-95, MDCoordinateOutOfRange::class],
         ];
 
+        $output = [];
         foreach ($values as $value) {
             $output[gettype($value[0]) . ': ' . var_export($value[0], true)] = $value;
         }