Fix for DOLLARDE() and DOLLARFR() with negative dollar values

Additional argument validations

CHANGELOG.md

@@ -49,6 +49,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Fixed
 
+- Fix bug with `DOLLARDE()` and `DOLLARFR()` functions when the dollar value is negative [Issue #2578](https://github.com/PHPOffice/PhpSpreadsheet/issues/2578) [PR #2579](https://github.com/PHPOffice/PhpSpreadsheet/pull/2579)
 - Fix partial function name matching when translating formulae from Russian to English [Issue #2533](https://github.com/PHPOffice/PhpSpreadsheet/issues/2533) [PR #2534](https://github.com/PHPOffice/PhpSpreadsheet/pull/2534)
 - Various bugs related to Conditional Formatting Rules, and errors in the Xlsx Writer for Conditional Formatting [PR #2491](https://github.com/PHPOffice/PhpSpreadsheet/pull/2491)
 - Xlsx Reader merge range fixes.

phpstan-baseline.neon

@@ -960,21 +960,6 @@ parameters:
 			count: 1
 			path: src/PhpSpreadsheet/Calculation/Financial/Depreciation.php
 
-		-
-			message: "#^Cannot cast mixed to int\\.$#"
-			count: 2
-			path: src/PhpSpreadsheet/Calculation/Financial/Dollar.php
-
-		-
-			message: "#^Parameter \\#1 \\$number of function floor expects float, mixed given\\.$#"
-			count: 2
-			path: src/PhpSpreadsheet/Calculation/Financial/Dollar.php
-
-		-
-			message: "#^Parameter \\#1 \\$x of function fmod expects float, mixed given\\.$#"
-			count: 2
-			path: src/PhpSpreadsheet/Calculation/Financial/Dollar.php
-
 		-
 			message: "#^Method PhpOffice\\\\PhpSpreadsheet\\\\Calculation\\\\Financial\\\\Securities\\\\AccruedInterest\\:\\:atMaturity\\(\\) should return float\\|string but returns array\\|string\\.$#"
 			count: 1

src/PhpSpreadsheet/Calculation/Financial/Dollar.php

@@ -2,6 +2,7 @@
 
 namespace PhpOffice\PhpSpreadsheet\Calculation\Financial;
 
+use PhpOffice\PhpSpreadsheet\Calculation\Exception;
 use PhpOffice\PhpSpreadsheet\Calculation\Functions;
 use PhpOffice\PhpSpreadsheet\Calculation\TextData\Format;
 
@@ -40,18 +41,24 @@ class Dollar
      */
     public static function decimal($fractionalDollar = null, $fraction = 0)
     {
-        $fractionalDollar = Functions::flattenSingleValue($fractionalDollar);
+        try {
-        $fraction = (int) Functions::flattenSingleValue($fraction);
+            $fractionalDollar = FinancialValidations::validateFloat(
+                Functions::flattenSingleValue($fractionalDollar) ?? 0.0
+            );
+            $fraction = FinancialValidations::validateInt(Functions::flattenSingleValue($fraction));
+        } catch (Exception $e) {
+            return $e->getMessage();
+        }
 
-        // Validate parameters
+        // Additional parameter validations
-        if ($fractionalDollar === null || $fraction < 0) {
+        if ($fraction < 0) {
             return Functions::NAN();
         }
         if ($fraction == 0) {
             return Functions::DIV0();
         }
 
-        $dollars = floor($fractionalDollar);
+        $dollars = ($fractionalDollar < 0.0) ? ceil($fractionalDollar) : floor($fractionalDollar);
         $cents = fmod($fractionalDollar, 1);
         $cents /= $fraction;
         $cents *= 10 ** ceil(log10($fraction));
@@ -76,18 +83,24 @@ class Dollar
      */
     public static function fractional($decimalDollar = null, $fraction = 0)
     {
-        $decimalDollar = Functions::flattenSingleValue($decimalDollar);
+        try {
-        $fraction = (int) Functions::flattenSingleValue($fraction);
+            $decimalDollar = FinancialValidations::validateFloat(
+                Functions::flattenSingleValue($decimalDollar) ?? 0.0
+            );
+            $fraction = FinancialValidations::validateInt(Functions::flattenSingleValue($fraction));
+        } catch (Exception $e) {
+            return $e->getMessage();
+        }
 
-        // Validate parameters
+        // Additional parameter validations
-        if ($decimalDollar === null || $fraction < 0) {
+        if ($fraction < 0) {
             return Functions::NAN();
         }
         if ($fraction == 0) {
             return Functions::DIV0();
         }
 
-        $dollars = floor($decimalDollar);
+        $dollars = ($decimalDollar < 0.0) ? ceil($decimalDollar) : floor($decimalDollar);
         $cents = fmod($decimalDollar, 1);
         $cents *= $fraction;
         $cents *= 10 ** (-ceil(log10($fraction)));

tests/data/Calculation/Financial/DOLLARDE.php

@@ -3,6 +3,16 @@
 // fractional_dollar, fraction, result
 
 return [
+    [
+        2.5,
+        1.6,
+        4,
+    ],
+    [
+        -2.5,
+        -1.6,
+        4,
+    ],
     [
         1.125,
         1.02,
@@ -38,6 +48,11 @@ return [
         1.1200000000000001,
         32,
     ],
+    [
+        '#VALUE!',
+        'Not A Number',
+        0,
+    ],
     [
         '#DIV/0!',
         1.2344999999999999,

tests/data/Calculation/Financial/DOLLARFR.php

@@ -3,6 +3,16 @@
 // decimal_dollar, fraction, result
 
 return [
+    [
+        1.24,
+        1.6,
+        4,
+    ],
+    [
+        -1.24,
+        -1.6,
+        4,
+    ],
     [
         1.02,
         1.125,
@@ -38,6 +48,11 @@ return [
         1.375,
         32,
     ],
+    [
+        '#VALUE!',
+        'Not A Number',
+        0,
+    ],
     [
         '#DIV/0!',
         1.2344999999999999,