(PECL ssh2 >= 0.12)
ssh2_sftp_chmod — Changes file mode
$sftp, string $filename, int $mode): bool
Attempts to change the mode of the specified file to that given in
mode.
sftpAn SSH2 SFTP resource opened by ssh2_sftp().
filenamePath to the file.
modePermissions on the file. See the chmod() for more details on this parameter.
Returns true on success or false on failure.
Example #1 Changing the mode of a file on a remote server
<?php
$connection = ssh2_connect('shell.example.com', 22);
ssh2_auth_password($connection, 'username', 'password');
$sftp = ssh2_sftp($connection);
ssh2_sftp_chmod($sftp, '/somedir/somefile', 0755);
?>