Online PHP editor | refs for Fv2qF

<?php function needArray(Iterable $arr) { $arr[] = 'hi'; return $arr; } class obj implements ArrayAccess { private $container = array(); public function __construct() { $this->container = array( "one" => 1, "two" => 2, "three" => 3, ); } public function offsetSet($offset, $value) { if (is_null($offset)) { $this->container[] = $value; } else { $this->container[$offset] = $value; } } public function offsetExists($offset) { return isset($this->container[$offset]); } public function offsetUnset($offset) { unset($this->container[$offset]); } public function offsetGet($offset) { return isset($this->container[$offset]) ? $this->container[$offset] : null; } } $obj = new obj; echo "testing with ArrayAccess\n"; var_dump(needArray($obj)); $arr = []; echo "testing with array\n"; var_dump(needArray($arr));