提交的内容

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/DateTimeExcel/DateValue.php

@@ -45,6 +45,11 @@ class DateValue
             return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $dateValue);
         }
 
+        // try to parse as date iff there is at least one digit
+        if (is_string($dateValue) && preg_match('/\\d/', $dateValue) !== 1) {
+            return ExcelError::VALUE();
+        }
+
         $dti = new DateTimeImmutable();
         $baseYear = SharedDateHelper::getExcelCalendar();
         $dateValue = trim($dateValue ?? '', '"');

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/DateTimeExcel/Month.php

@@ -45,6 +45,7 @@ class Month
         } catch (Exception $e) {
             return $e->getMessage();
         }
+        $dateValue = floor($dateValue);
         $adjustmentMonths = floor($adjustmentMonths);
 
         // Execute function
@@ -88,6 +89,7 @@ class Month
         } catch (Exception $e) {
             return $e->getMessage();
         }
+        $dateValue = floor($dateValue);
         $adjustmentMonths = floor($adjustmentMonths);
 
         // Execute function

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/DateTimeExcel/TimeValue.php

@@ -42,6 +42,11 @@ class TimeValue
             return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $timeValue);
         }
 
+        // try to parse as time iff there is at least one digit
+        if (is_string($timeValue) && preg_match('/\\d/', $timeValue) !== 1) {
+            return ExcelError::VALUE();
+        }
+
         $timeValue = trim($timeValue ?? '', '"');
         $timeValue = str_replace(['/', '.'], '-', $timeValue);