get_set_comments.php

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<?php
 
copy('test_with_comment.zip', 't.zip');
$z = new ZipArchive;
$z->open('t.zip');
 
print_r($z);
 
for ($i=0; $i<$z->numFiles; $i++) {
    echo "index: $i\n";
    print_r($z->getCommentIndex($i));
    echo "\n\n";
}
echo "foobar/ " . $z->getCommentName('foobar/') . "\n";
 
echo "Archive comment: " . $z->getArchiveComment() . "\n";
 
 
$z->setCommentIndex(1, 'new comment idx 1');
$z->setCommentName('foobar/', 'new comment foobar/');
 
$z->setArchiveComment( 'new archive comment');
 
for ($i=0; $i<$z->numFiles; $i++) {
    echo "index: $i\n";
    print_r($z->getCommentIndex($i));
    echo "\n\n";
}
 
echo $z->getCommentName('foobar/') . "\n";
 
// Get the original comment
echo $z->getCommentName('foobar/', ZIPARCHIVE::FL_UNCHANGED) . "\n";
 
echo "Archive comment: " . $z->getArchiveComment() . "\n";
echo "Archive comment (original): " . $z->getArchiveComment(ZIPARCHIVE::FL_UNCHANGED) . "\n";