(PHP 7, PECL zip >= 1.13.0)
ZipArchive::setCompressionIndex — Set the compression method of an entry defined by its index
public ZipArchive::setCompressionIndex ( int $index , int $comp_method [, int $comp_flags = 0 ] ) : bool
Set the compression method of an entry defined by its index.
index
Index of the entry.
comp_method
The compression method, one of the ZipArchive::CM_* constants.
comp_flags
Compression level.
Returns true on success or false on failure.
Example #1 Add files with different compression methods to an archive
<?php
$zip = new ZipArchive;
$res = $zip->open('test.zip', ZipArchive::CREATE);
if ($res === TRUE) {
$zip->addFromString('foo', 'Some text');
$zip->addFromString('bar', 'Some other text');
$zip->setCompressionIndex(0, ZipArchive::CM_STORE);
$zip->setCompressionIndex(1, ZipArchive::CM_DEFLATE);
$zip->close();
echo 'ok';
} else {
echo 'failed';
}
?>
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https://www.php.net/manual/en/ziparchive.setcompressionindex.php