- array_replace_recursive: documentation ( source)
<?php
trait OptionzTrait
{
protected $_options = array();
public function setOptions(array $options)
{
$this->_options = array_replace_recursive(
$this->_options,
$options
);
}
public function getOptions()
{
return $this->_options;
}
}
class Optionz
{
use OptionzTrait;
protected $_inception;
public function __construct($options)
{
$this->_options = array(
'fact' => null,
'inception' => array(
'options' => array()
)
);
$this->setOptions($options);
}
public function stateFact()
{
echo $this->_options['fact'] . "\n";
}
public function getInception()
{
if ($this->_inception === null) {
$this->_inception = new static($this->_options['inception']['options']);
}
return $this->_inception;
}
public function setInception(Optionz $inception)
{
$this->_inception = $inception;
}
}
$optionz = new Optionz(array('inception' => array('options' => array('fact' => 'it is known'))));
$optionz->getInception()->stateFact();
// caveat: nested properties are only propagated initially
$optionz->getInception()->setOptions(array('fact' => 'this works'));
$optionz->getInception()->stateFact();
$optionz->setInception(null); // try this
$optionz->setOptions(array('inception' => array('options' => array('fact' => 'this doesnt'))));
$optionz->getInception()->stateFact();