Use SFTP in Ubuntu to synchronize files to different servers

Let's talk about the background of the application. Today, the company asked me to write a segment program and asked me to synchronize the configuration files of the master server to different servers. After studying for a while, the code written is as follows: Part of the configuration file config. inc. php: 'servergroup' = & gt; array ('192. 168.0.240 '= & gt;

Let's talk about the background of the application.

Today, the company asked me to write a segment program and asked me to synchronize the configuration files of the master server to different servers. After a while,

The code written is as follows:

Configuration file config. inc. php:

1. 'Servergroup' =>Array(
2. '1970. 168.0.240 '=>Array(
3. 'User' => 'root ',
4. 'Pass' => 'sjgj2508 ',
5. 'Path' => '/var/www/html /',
6. ),
7. '1970. 168.0.244 '=>Array(
8. 'User' => 'root ',
9. 'Pass' => 'sjgj2508 ',
10. 'Path' => '/var/www/html /',
11. ),
12. ),

The main code of the synchronization program is as follows:

1. $ ConfigName = 'config. xml'; // name of the configuration file of the master server
2. $ ConfPath = ROOT_PATH. '/_ cfg/config. xml'; // the configuration file path of the master server
3. // Slave server host name and other information
4. $ ServerGroup = $ this-> conf ['servergroup']; // $ this-> conf [] here; is a built-in array of the Framework. You can obtain the content in the preceding configuration file.
5. Foreach($ ServerGroupAs$ K => $ v ){
6. // Connect to the slave server
7. $ ResConnection = ssh2_connect ($ k );
8. // Determine whether the log on to the slave server is successful
9. If(Ssh2_auth_password ($ resConnection, $ v ['user'], $ v ['pass']) {
10. // Initialize the SFTP Subsystem
11. $ ResSFTP = ssh2_sftp ($ resConnection );
12. If(! Copy ($ confPath, "ssh2.sftp: // {$ resSFTP} {$ v ['path']} _ inc/class/Algorithm/{$ configName }")){
13. Echo 'synchronization configuration file failed ';
14. }
15. }Else{
16. Echo "unable to connect to the slave server {$ k }";
17. }
18. }

Before testing, make sure that the system has related extensions (such as libssh2 ).

Write a blog for the first time. Write down these items as a backup. Please kindly advise.

In addition, one of the programs is not very understandable.

If (! Copy ($ confPath, "ssh2.sftp: // {$ resSFTP} {$ v ['path']} _ inc/class/Algorithm/{$ configName }")){

Echo 'synchronization configuration file failed ';

}

In this section, ssh2.sftp: // {$ resSFTP} {$ v ['path']} _ inc/class/Algorithm/{$ configName }"

The point is that it is unclear why ssh2.sftp: // {$ resSFTP} should be added. Why? I hope the great gods who read this article can help me solve the problem. Thank you.