PHP function ssh2_connect is not working - php

Question

Following is my script:
<?php
$connection = ssh2_connect('XX.XX.XX.XX', 22);
ssh2_auth_password($connection, 'root', '******');
$stream = ssh2_exec($connection, 'useradd -d /home/users/test -m testftp');
$stream = ssh2_exec($connection, 'passwd testftp');
$stream = ssh2_exec($connection, 'password');
$stream = ssh2_exec($connection, 'password');
?>
It showing the following error:
Fatal error: Call to undefined function ssh2_connect() in /home/chaosnz/public_html/fotosnap.net/test.php on line 2
How can I deal with this?
Thanks

Answer 1

I have installed the SSH2 PECL extension and its working fine thanks all for you help...

Answer 2

Honestly, I'd recommend using phpseclib, a pure PHP SSH2 implementation. Example:
<?php
include('Net/SSH2.php');
$ssh = new Net_SSH2('www.domain.tld');
if (!$ssh->login('username', 'password')) {
exit('Login Failed');
}
echo $ssh->exec('pwd');
echo $ssh->exec('ls -la');
?>
It's a ton more portable, easier to use and more feature packed too.

Answer 3

I have solved this on ubuntu 16.4 PHP 7.0.27-0+deb9u and nginx
sudo apt install php-ssh2

Answer 4

You need to install ssh2 lib
sudo apt-get install libssh2-php && sudo /etc/init.d/apache2 restart
that should be enough to get you on the road

Answer 5

If you are running a bomebrew on OSX, I used the following to install it:
brew install php56-ssh2
That worked for me. I pulled it from here. There should also be Ubuntu and OSX using mac port as well.

Answer 6

I am running CentOS 5.6 as my development environment and the following worked for me.
su -
pecl install ssh2
echo "extension=ssh2.so" > /etc/php.d/ssh2.ini
/etc/init.d/httpd restart

Answer 7

To expand on #neubert answer, if you are using Laravel 5 or similar, you can use phpseclib much simpler like this:
Run composer require phpseclib/phpseclib ~2.0
In your controller add
use phpseclib\Net\SSH2;
Then use it in a controller method like:
$host = config('ssh.host');
$username = config('ssh.username');
$password = config('ssh.password');
$command = 'php version';
$ssh = new SSH2($host);
if (!$ssh->login($username, $password)) {
$output ='Login Failed';
}
else{
$output = $ssh->exec($command);
}

Answer 8

For today pecl install ssh2 requires old versions of php (<=6.0). Here https://pecl.php.net/package/ssh2 you can see the latest beta versions of ssh2 supporting php7 and php8. So you should install one of them:
pecl install ssh2-1.3.1
* Do not forget to enable this ssh2.so extension in your php.ini file.

Answer 9

For WHM Panel
Menu > Server Configuration > Terminal:
yum install libssh2-devel -y
Menu > Software > Module Installers
PHP PECL Manage Click
ssh2 Install Now Click
Menu > Restart Services > HTTP Server (Apache)
Are you sure you wish to restart this service?
Yes
ssh2_connect() Work!

Answer 10

I know there are answers but I am just simplifying the answer here.
I have same issue and I fixed it with below solution in ubuntu 20:
sudo apt-get install libssh2-1 php7.1-ssh2 -y
you can change the php version as per your need like: php7.4-ssh2
Ref: https://blog.programster.org/ubuntu-16-04-install-php-ssh2-extension