Description:
------------
---
From manual page: https://php.net/function.ssh2-sftp-chmod
---
Please confirm and note/document that permissions for directory created using this function are affected by system umask setting.

Test script:
---------------
/* Create directory */
ssh2_sftp_mkdir($sftp, '/home/site',0774);

# If system umask default is 022, as it's default on most Linux distributions
# you will end up with directory that has permission 754
# If you really want permissions set to 0774, you have to use ssh2_sftp_chmod

/* Make sure proper permissions are set */
ssh2_sftp_chmod($sftp, '/home/site',0774);