PhpParser\Node\Stmt\Property::isProtected PHP Method

    public function isProtected()
    {
        return (bool) ($this->flags & Class_::MODIFIER_PROTECTED);
    }

 /**
  * @param PropertyNode $node
  * @param ReflectionClass $declaringClass
  * @return ReflectionProperty
  */
 public static function createFromNode(PropertyNode $node, ReflectionClass $declaringClass)
 {
     $prop = new self();
     $prop->name = $node->props[0]->name;
     $prop->declaringClass = $declaringClass;
     if ($node->isPrivate()) {
         $prop->visibility = self::IS_PRIVATE;
     } elseif ($node->isProtected()) {
         $prop->visibility = self::IS_PROTECTED;
     } else {
         $prop->visibility = self::IS_PUBLIC;
     }
     $prop->isStatic = $node->isStatic();
     $prop->docBlockTypes = (new FindPropertyType())->__invoke($node, $prop);
     return $prop;
 }