Question

I want to check if a local variable in a class is public or private.
The reason is to create a function like this:

function ToArray() {
  $arr = array();
  foreach($this as $key => $val) {
    $arr[$key] = $val;
  }
  return $arr;
}

This function also return private fields, and I don’t want that. How can I get only public variables here?

Answer 1

From the PHP documentation,

$foo = new Foo();

$reflect = new ReflectionClass($foo);
$props   = $reflect->getProperties(ReflectionProperty::IS_PUBLIC);

foreach ($props as $prop) {
    print $prop->getName() . "\n";
}

var_dump($props);