Invalid Html Due to Cached Filesize

Fix #1107. Clear statcache for file before requesting its size.

src/PhpSpreadsheet/Reader/Html.php

@@ -173,6 +173,7 @@ class Html extends BaseReader
         // Phpstan incorrectly flags following line for Php8.2-, corrected in 8.3
         $filename = $meta['uri']; //@phpstan-ignore-line
 
+        clearstatcache(true, $filename);
         $size = (int) filesize($filename);
         if ($size === 0) {
             return '';

tests/PhpSpreadsheetTests/Reader/Html/Issue1107Test.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpOffice\PhpSpreadsheetTests\Reader\Html;
+
+use PhpOffice\PhpSpreadsheet\Reader\Html as HtmlReader;
+use PhpOffice\PhpSpreadsheet\Shared\File;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Writer\Html as HtmlWriter;
+use PHPUnit\Framework\TestCase;
+
+class Issue1107Test extends TestCase
+{
+    private string $outfile = '';
+
+    protected function tearDown(): void
+    {
+        if ($this->outfile !== '') {
+            unlink($this->outfile);
+            $this->outfile = '';
+        }
+    }
+
+    public function testIssue1107(): void
+    {
+        // failure due to cached file size
+        $outstr = str_repeat('a', 1023) . "\n";
+        $allout = str_repeat($outstr, 10);
+        $this->outfile = $outfile = File::temporaryFilename();
+        file_put_contents($outfile, $allout);
+        self::assertSame(10240, filesize($outfile));
+        $spreadsheet = new Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+        $sheet->getCell('A1')->setValue(1);
+        $writer = new HtmlWriter($spreadsheet);
+        $writer->save($outfile);
+        $spreadsheet->disconnectWorksheets();
+        $reader = new HtmlReader();
+        $spreadsheet2 = $reader->load($outfile);
+        $sheet2 = $spreadsheet2->getActiveSheet();
+        self::assertSame(1, $sheet2->getCell('A1')->getValue());
+
+        $spreadsheet2->disconnectWorksheets();
+    }
+}