How can a cronjob from one server be accessed on another server?

To access a cronjob from one server on another server, you can use SSH to remotely execute the cronjob command on the server where the cronjob is located. This can be achieved by using PHP's `ssh2_exec` function to establish an SSH connection and run the cronjob command remotely.

// SSH connection settings
$server = 'server_ip';
$username = 'ssh_username';
$password = 'ssh_password';

// SSH connection
$connection = ssh2_connect($server, 22);
ssh2_auth_password($connection, $username, $password);

// Execute cronjob command remotely
$command = 'crontab -l | grep -v "cronjob_to_remove" | crontab -';
ssh2_exec($connection, $command);