Alter Version

vendor/PhpSpreadsheet/Cell/DefaultValueBinder.php

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+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Cell;
+
+use DateTimeInterface;
+use PhpOffice\PhpSpreadsheet\RichText\RichText;
+use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
+
+class DefaultValueBinder implements IValueBinder
+{
+    /**
+     * Bind value to a cell.
+     *
+     * @param Cell $cell Cell to bind value to
+     * @param mixed $value Value to bind in cell
+     *
+     * @return bool
+     */
+    public function bindValue(Cell $cell, $value)
+    {
+        // sanitize UTF-8 strings
+        if (is_string($value)) {
+            $value = StringHelper::sanitizeUTF8($value);
+        } elseif (is_object($value)) {
+            // Handle any objects that might be injected
+            if ($value instanceof DateTimeInterface) {
+                $value = $value->format('Y-m-d H:i:s');
+            } elseif (!($value instanceof RichText)) {
+                $value = (string) $value;
+            }
+        }
+
+        // Set value explicit
+        $cell->setValueExplicit($value, static::dataTypeForValue($value));
+
+        // Done!
+        return true;
+    }
+
+    /**
+     * DataType for value.
+     *
+     * @param mixed $pValue
+     *
+     * @return string
+     */
+    public static function dataTypeForValue($pValue)
+    {
+        // Match the value against a few data types
+        if ($pValue === null) {
+            return DataType::TYPE_NULL;
+        } elseif (is_float($pValue) || is_int($pValue)) {
+            return DataType::TYPE_NUMERIC;
+        } elseif (is_bool($pValue)) {
+            return DataType::TYPE_BOOL;
+        } elseif ($pValue === '') {
+            return DataType::TYPE_STRING;
+        } elseif ($pValue instanceof RichText) {
+            return DataType::TYPE_INLINE;
+        } elseif (is_string($pValue) && $pValue[0] === '=' && strlen($pValue) > 1) {
+            return DataType::TYPE_FORMULA;
+        } elseif (preg_match('/^[\+\-]?(\d+\\.?\d*|\d*\\.?\d+)([Ee][\-\+]?[0-2]?\d{1,3})?$/', $pValue)) {
+            $tValue = ltrim($pValue, '+-');
+            if (is_string($pValue) && $tValue[0] === '0' && strlen($tValue) > 1 && $tValue[1] !== '.') {
+                return DataType::TYPE_STRING;
+            } elseif ((strpos($pValue, '.') === false) && ($pValue > PHP_INT_MAX)) {
+                return DataType::TYPE_STRING;
+            } elseif (!is_numeric($pValue)) {
+                return DataType::TYPE_STRING;
+            }
+
+            return DataType::TYPE_NUMERIC;
+        } elseif (is_string($pValue)) {
+            $errorCodes = DataType::getErrorCodes();
+            if (isset($errorCodes[$pValue])) {
+                return DataType::TYPE_ERROR;
+            }
+        }
+
+        return DataType::TYPE_STRING;
+    }
+}