init

lib/PhpSpreadsheet/Style/NumberFormat/FractionFormatter.php

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+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Style\NumberFormat;
+
+use PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
+
+class FractionFormatter extends BaseFormatter
+{
+    public static function format(mixed $value, string $format): string
+    {
+        $format = self::stripQuotes($format);
+        $value = (float) $value;
+        $absValue = abs($value);
+
+        $sign = ($value < 0.0) ? '-' : '';
+
+        $integerPart = floor($absValue);
+
+        $decimalPart = self::getDecimal((string) $absValue);
+        if ($decimalPart === '0') {
+            return "{$sign}{$integerPart}";
+        }
+        $decimalLength = strlen($decimalPart);
+        $decimalDivisor = 10 ** $decimalLength;
+
+        preg_match('/(#?.*\?)\/(\?+|\d+)/', $format, $matches);
+        $formatIntegerPart = $matches[1];
+
+        if (is_numeric($matches[2])) {
+            $fractionDivisor = 100 / (int) $matches[2];
+        } else {
+            /** @var float $fractionDivisor */
+            $fractionDivisor = MathTrig\Gcd::evaluate((int) $decimalPart, $decimalDivisor);
+        }
+
+        $adjustedDecimalPart = (int) round((int) $decimalPart / $fractionDivisor, 0);
+        $adjustedDecimalDivisor = $decimalDivisor / $fractionDivisor;
+
+        if ((str_contains($formatIntegerPart, '0'))) {
+            return "{$sign}{$integerPart} {$adjustedDecimalPart}/{$adjustedDecimalDivisor}";
+        } elseif ((str_contains($formatIntegerPart, '#'))) {
+            if ($integerPart == 0) {
+                return "{$sign}{$adjustedDecimalPart}/{$adjustedDecimalDivisor}";
+            }
+
+            return "{$sign}{$integerPart} {$adjustedDecimalPart}/{$adjustedDecimalDivisor}";
+        } elseif ((str_starts_with($formatIntegerPart, '? ?'))) {
+            if ($integerPart == 0) {
+                $integerPart = '';
+            }
+
+            return "{$sign}{$integerPart} {$adjustedDecimalPart}/{$adjustedDecimalDivisor}";
+        }
+
+        $adjustedDecimalPart += $integerPart * $adjustedDecimalDivisor;
+
+        return "{$sign}{$adjustedDecimalPart}/{$adjustedDecimalDivisor}";
+    }
+
+    private static function getDecimal(string $value): string
+    {
+        $decimalPart = '0';
+        if (preg_match('/^\\d*[.](\\d*[1-9])0*$/', $value, $matches) === 1) {
+            $decimalPart = $matches[1];
+        }
+
+        return $decimalPart;
+    }
+}