PHP Print keys from an object?

Question

I have an object BIRD and then there is [0] through [10] and each number has a subheading like \"bug\" or \"beetle\" or \"gnat\" and a value for each of those.

I wan

Answer 1

Looks like array_keys might have stopped working on objects but, amazingly, the foreach construct works, at least on a php stdClass object.

$object = new stdClass();
$object->a = 20;
$object->b = "hello";
$keys = array_keys($object);
// array_keys returns null. PHP Version 7.3.3 windows
foreach($object as $key=>$value)
{
     // but this works
     echo("key:" . $key . " value:" . $value . "\n");
}