How can PHP form data be securely passed to an SSH command for execution?

To securely pass PHP form data to an SSH command for execution, you should use escapeshellarg() function to escape the form data and prevent any potential shell injection attacks. This function ensures that the data is properly formatted for safe execution in the shell command. 

// Get form data
$form_data = $_POST['form_data'];

// Escape the form data for secure execution in SSH command
$escaped_data = escapeshellarg($form_data);

// Construct SSH command with the escaped form data
$ssh_command = "ssh user@hostname 'your_command $escaped_data'";

// Execute the SSH command
$output = shell_exec($ssh_command);

// Output the result
echo $output;

Keywords

PHP form data SSH command execution security

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