PHP connects to the server for server command operations

Install PHP SSH2 extension

Ubuntu installation of php link server requires php extension:

sudo apt-get install libssh2-1 php-ssh2

Install in Windows environment

Downloadphp extension ssh2

Download address http://windows.php.net/downloads/pecl/releases/ssh2/ 0.12/

Download according to your PHP version. I use WAMPSERVER2.5 (64bit), and the PHP version is 5.5.12, which is thread-safe.

So the download is php_ssh2-0.12-5.5 -ts-vc11-x64.zip

1. After decompression, there will be three files, libssh2.dll, php_ssh.dll, php_ssh2.pdb.

2. Place php_ssh.dll and php_ssh2.pdb in your php extension directory php/ext/.

3. Copy libssh2.dll to c:/windows/system32 and c:/windows/syswow64

4. Add extension=php_ssh2.dll## to php.ini

#5. Restart apache, and you can use php to perform ssh connection operations.

6. Check phpinfo() to see if the php_ssh2 extension is loaded successfully.

Installation in Linux environment

Dependent libraries required for PHP SSH2 extension

openssl: Encryption algorithm collection, C language implementation

libssh2: ssh2 protocol library library, C language implementation

PECL/ssh2: PHP extension of libssh2, allowing PHP programs to call functions in libssh2

Dependencies: PECL/ssh2 – > libssh2 –> openssl

Install the required extension packages

Install libssh2

wget  http://www.libssh2.org/download/libssh2-1.4.2.tar.gz  
tar zxf libssh2-1.4.2.tar.gz  
cd libssh2-1.4.2  
./configure && make && make install

Install PECL/ssh2

wget  http://pecl.php.net/get/ssh2-0.11.3.tgz  
cd ssh2-0.11.3  
phpize   (如果报错命令没有找到，apt-get install php5-dev)  
./configure —with-ssh2 && make && make install

Modify php configuration information

cd  /etc/php5/cgi  
vim  php.ini

Add item: extension=/usr/lib/php5/20090626/ssh2.so
ssh2.so is the module obtained when compiling ssh2. The above is the location of the module .

cd  /etc/php5/cli  
vim  php.ini

Added item: extension=/usr/lib/php5/20090626/ssh2.so
ssh2.so is the module obtained when compiling ssh2. The above is the location of the module.

Restart the web server

/etc/init.d/lighttpd restart

Check whether ssh2 is loaded

[root@localhost ~]php -m | grep s

php code usage

public function actionTestServer()
{
    //登陆linux的ssh2用户名
    $ssh_user='root';
    //登陆linux的密码
    $ssh_pwd='';
    //默认端口号22
    $ssh_port='22';
    //服务器IP地址
    $ssh_host='120.77.62.13';
    //先测试拓展是否安装并开启
    if(!function_exists("ssh2_connect")){
        exit('SSH扩展没有安装或者没有安装成功');
    }
    //建立ssh2连接
    $ssh2 = ssh2_connect($ssh_host, $ssh_port);
    if(!$ssh2){
        exit('连接服务器失败');
    }else{
        echo '成功连接上了服务器';
    }
    //连接成功后进行密码验证，没验证无法进行其他操作。
    if(!ssh2_auth_password( $ssh2, $ssh_user,  $ssh_pwd )){
        return false;
    }
    //shell脚本语句
    $e="/etc/init.d/nginx restart >> /tmp/nginx_restart_".date('Ymd').".log";
    //通过ssh2_exec执行语句
    ssh2_exec($ssh2, $e);
}

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