title: Non-blocking SFTP/FTPS uploads with PHP?
body: <p>PHP has an function for uploading files non-blocking ftp_nb_put(),
  but i would like to know if non-blocking ftp uploads is possible with sftp &amp; ftps.</p>
  
  <p>If not, what other languages provide non-blocking ftp uploads for sftp/ftps ?</p>
  
  <p>Thank you.</p>