function answerPost()
{
    global $db;
    $a = new Answer();
    echo "\nEnter the title of posted question\n";
    $a->quesTitle = trim(fgets(STDIN));
    echo "Enter the answer of Question\n";
    $a->comment = trim(fgets(STDIN));
    if ($a->postAnswer($db)) {
        echo "\n Answer has been posted successfully\n";
    } else {
        echo "\n Try again :(\n ";
    }
}