Description
string 
ssh2_sftp_realpath ( resource sftp, string filename )
     Translates filename into the effective real path
     on the remote filesystem.
    
例子 1. Resolving a pathname 
<?php $connection = ssh2_connect('shell.example.com', 22); ssh2_auth_password($connection, 'username', 'password'); $sftp = ssh2_sftp($connection);
  $realpath = ssh2_sftp_realpath($sftp, '/home/username/../../../..//./usr/../etc/passwd'); /* $realpath is now: '/etc/passwd' */ ?>
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     See Also:
     realpath(), and
     ssh2_sftp_symlink()
     ssh2_sftp_readlink()