(PHP 5 >= 5.6.0, PHP 7, PECL zip >= 1.12.4)
ZipArchive::setPassword — Set the password for the active archive
$password) : bool
Sets the password for the active archive.
The password to be used for the archive.
TRUE on success or
FALSE on failure.
As of PHP 7.2.0 and libzip 1.2.0 the password is used to decompress the archive, and is also the default password for ZipArchive::setEncryptionName() and ZipArchive::setEncryptionIndex(). Formerly, this function only set the password to be used to decompress the archive; it did not turn a non-password-protected ZipArchive into a password-protected ZipArchive.