| protected onlyParents ( array $interfaces ) : array | ||
| $interfaces | array | Reflection API interfaces to reduce. |
| return | array | List of parent interface names. |
protected function onlyParents($interfaces)
{
$parents = array();
$blacklist = array();
foreach ($interfaces as $interface) {
foreach ($interfaces as $possible_parent) {
if ($interface->getName() == $possible_parent->getName()) {
continue;
}
if ($interface->isSubClassOf($possible_parent)) {
$blacklist[$possible_parent->getName()] = true;
}
}
if (!isset($blacklist[$interface->getName()])) {
$parents[] = $interface->getName();
}
}
return $parents;
}