لقد قمت باستخدام الكود التالي لفك ضغط ملف zip

<?php
$zip = new ZipArchive;
if ($zip->open('chat-master.zip') === TRUE) {
  $zip->extractTo('zip');
  $zip->close();
  echo 'ok';
} else {
  echo 'failed';
}
?>

ويعمل جيدا مع الاصدار السابع من لغة php ولكن عندما استخدم الكود مع الاصدار الثامن يشتغل الكود ويفك الضغط ولكن مع ظهور هذه الاخطاء 

Warning: ZipArchive::extractTo(zip/chat-master/.github/FUNDING.yml): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/LICENSE): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/README.md): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/chat.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/conn.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/counter.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/db/chat.sql): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/db/counter.sql): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/db/users.sql): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/index.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/login/delete.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/login/index.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/login/logout.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/login/user.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/script.js): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/chat/style.css): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

Warning: ZipArchive::extractTo(zip/chat-master/index.php): Operation failed: Operation not permitted in /storage/emulated/0/htdocs2/images/zip.php on line 4

ماهي المشكلة وكيف احلها