-               static $styleValues = array(
-                       'decimal' => NumberFormatter::DECIMAL,
-                       'currency' => NumberFormatter::CURRENCY,
-                       'percent' => NumberFormatter::PERCENT,
-                       'scientific' => NumberFormatter::SCIENTIFIC,
-                       'spellout' => NumberFormatter::SPELLOUT,
-                       'ordinal' => NumberFormatter::ORDINAL,
-                       'duration' => NumberFormatter::DURATION,
-               );
-
-               if (!isset($styleValues[$style])) {
+               //Set styles
+               static $styles = [
+                       'decimal' => \NumberFormatter::DECIMAL,
+                       'currency' => \NumberFormatter::CURRENCY,
+                       'percent' => \NumberFormatter::PERCENT,
+                       'scientific' => \NumberFormatter::SCIENTIFIC,
+                       'spellout' => \NumberFormatter::SPELLOUT,
+                       'ordinal' => \NumberFormatter::ORDINAL,
+                       'duration' => \NumberFormatter::DURATION,
+               ];
+
+               //Without styles
+               if (!isset($styles[$style])) {