php - Upload files via SFTP with phpseclib -


i uploading csv files via sftp using phpseclib class. following:

include('vendor/autoload.php'); use phpseclib\crypt\rsa; use phpseclib\net\sftp; $sftp = new sftp($sftpserverhost); $key = new rsa(); $key->setpassword($sftpkeypassword); $key->loadkey(file_get_contents($sftpkey)); if (!$sftp->login($sftpusername, $key)) {    throw new exception('login failed'); }else{    $sftp->chdir('upload');    $sftp->put($filename, $output); }

$output - content of csv file. if content less ~40 lines file uploading no issues though if content >40 lines script hangs while outputs several lines of error:

php notice:  uninitialized string offset: 0 in /vendor/phpseclib/phpseclib/phpseclib/net/ssh2.php on line 3167 php notice:  connection closed prematurely in /vendor/phpseclib/phpseclib/phpseclib/net/ssh2.php on line 3025 php notice:  connection closed server in /vendor/phpseclib/phpseclib/phpseclib/net/ssh2.php on line 3373 php notice:  expected ssh_fxp_status in /vendor/phpseclib/phpseclib/phpseclib/net/sftp.php on line 2027 php notice:  connection closed prematurely in /vendor/phpseclib/phpseclib/phpseclib/net/ssh2.php on line 3599

as result file not uploaded. suggestions how fix it?


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