php 导出word文档报错

$filePath = 'path/to/your/document.docx';
if (!file_exists($filePath)) {
    mkdir(dirname($filePath), 0777, true);
}

chmod($filePath, 0777);

header('Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document');
header('Content-Disposition: attachment; filename="document.docx"');
header('Cache-Control: max-age=0');

if (!class_exists('ZipArchive')) {
    throw new Exception('ZipArchive extension is required');
}

<?php
$filePath = 'path/to/your/document.docx';
if (!file_exists($filePath)) {
    mkdir(dirname($filePath), 0777, true);
}

header('Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document');
header('Content-Disposition: attachment; filename="document.docx"');
header('Cache-Control: max-age=0');

$zip = new ZipArchive();
if ($zip->open($filePath, ZipArchive::CREATE) === TRUE) {
    $zip->addFromString('word/document.xml', '<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main"><w:body<w:p><w:r><w:t>Hello, World!</w:t></w:r></w:p></w:body></w:document>');
    $zip->close();
}
readfile($filePath);
unlink($filePath);
?>