If you've already got a filepath of the form "ssh2.sftp://$sftp/path/to/file" you can just use unlink() on that path
(PECL ssh2 >= 0.9.0)
ssh2_sftp_unlink — Borra un fichero
Borra un fichero en el sistema de ficheros remoto.
sftpUn recurso SSH2 SFTP, abierto por la función ssh2_sftp().
filenameEl nombre del fichero a borrar.
Ejemplo #1 Borrado de un fichero
<?php
$connection = ssh2_connect('shell.example.com', 22);
ssh2_auth_password($connection, 'username', 'password');
$sftp = ssh2_sftp($connection);
ssh2_sftp_unlink($sftp, '/home/username/stale_file');
?>If you've already got a filepath of the form "ssh2.sftp://$sftp/path/to/file" you can just use unlink() on that pathFor some reasons, sometime it's not working. You can do like this instead:
unlink('ssh2.sftp://' . intval($sftp) . ssh2_sftp_realpath($sftp,".") . "./".$dstFile);