Question

o Avoid using library functions and use system calls whenever possible o Check the success of every system call you use o Close files when done using them

Answer 1

i have an example of this input

$customer = new Customer();
$customer->include_related('desease', array('desease_name'), true, true);
$customers = $customer->get();

foreach($customers as $c){
echo $c->firstname . $c->lastname;
echo "<br>";
foreach($c->desease as $cd)
{
echo $cd->desease_name;
echo "<br>";
}
}