Refactor NumberFormatter::format() for improved readability

src/NumberFormatter.php

@@ -13,25 +13,32 @@ class NumberFormatter
      * @param string $thousandsSeparator
      * @return void
      */
-    public static function format($number, ?int $decimals = null, string $decimalSeparator = '.', string $thousandsSeparator = '')
-    {
+    public static function format(
+        $number,
+        ?int $decimals = null,
+        string $decimalSeparator = ".",
+        string $thousandsSeparator = ""
+    ) {
         if ($decimals == null) {
-
-            $decimalPoint = '.';
-            if(!is_float($number)) {
-                // Convert to string to detect decimals
-                // Get the current decimal point character according to the locale
-                $locale = localeconv();
-                $decimalPoint = $locale['decimal_point'] ?? '.';
-            }
+            // Get the current decimal point character according to the locale
+            // This is needed because (string)$number uses the locale's decimal separator
+            $locale = localeconv();
+            $decimalPoint = $locale["decimal_point"] ?? ".";
 
             // Convert to string to detect decimals
-            $parts = explode($decimalPoint, (string)$number);
+            $parts = explode($decimalPoint, (string) $number);
 
             // Count decimals, if any
-            $decimals = isset($parts[1]) ? strlen(rtrim($parts[1], '0')) : 0;
+            $decimals = isset($parts[1]) ? strlen(rtrim($parts[1], "0")) : 0;
         }
 
-        return number_format($number, $decimals, $decimalSeparator, $thousandsSeparator);
+        $value = number_format(
+            $number,
+            $decimals,
+            $decimalSeparator,
+            $thousandsSeparator
+        );
+
+        return $value;
     }
 }