Why does the Invalid or unitialized Zip object error occur?

Question

PHP

After downloading the file, I try to archive it using the ZipArchive class and get an error:

Warning: ZipArchive::addFile(): Invalid or unitialized Zip object in ... on line 48
Warning: ZipArchive::close(): Invalid or unitialized Zip object in ... on line 49

48 and 49 lines of code I attach:

$zip->addFile($_FILES['file']['tmp_name'][$i], $fileName1.'.'.get_ext($_FILES['file']['name'][$i]));
$zip->close();

All variables exist (checked :) ).

Answer 1

It is said - $zipeither beaten, or not initialized.