(PHP 5 >= 5.2.0, PHP 7, PECL zip >= 1.1.0)
ZipArchive::getArchiveComment — Returns the Zip archive comment
public ZipArchive::getArchiveComment ([ int $flags ] ) : string|false
Returns the Zip archive comment.
flags
 If flags is set to ZipArchive::FL_UNCHANGED, the original unchanged comment is returned. 
 Returns the Zip archive comment or false on failure. 
Example #1 Dump an archive comment
<?php
$zip = new ZipArchive;
$res = $zip->open('test_with_comment.zip');
if ($res === TRUE) {
    var_dump($zip->getArchiveComment());
    /* Or using the archive property */
    var_dump($zip->comment);
} else {
    echo 'failed, code:' . $res;
}
?> 
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Licensed under the Creative Commons Attribution License v3.0 or later.
    https://www.php.net/manual/en/ziparchive.getarchivecomment.php