<?php $config = new class([ "item" => [ "I", "am", "a", "animal" => "beaver", ], "callable" => function(){ return true; } ]) implements ArrayAccess { public function __construct(array $initial = []) { foreach ($initial as $k => $v) { if (is_array($v)) { $this->$k = new self($v); } else $this->$k = $v; } } public function offsetGet($offset) { if (!isset($this->$offset)) { return ($this->$offset = new self()); } return $this->$offset; } public function offsetSet($offset, $value) { if (is_array($value)) { $this->$offset = new self($value); } else $this->$offset = $value; } public function offsetUnset($offset) { unset($this->$offset); } public function offsetExists($offset) { return isset($this->$offset); } public function array(self $object = null) : array { $array = []; if ($object === null) $object = $this; foreach ($object as $k => $v) { if ($v instanceof self) { $array[$k] = $this->array($v); } else $array[$k] = $v; } return $array; } public function __invoke(...$args) {} /* more magic here, perhaps ... */ }; $config["item"]["next"] = [ "I", "am", "a", "animal" => "badger", ]; # write undefined index of existing member $config[1][2] = "hello"; # write undefined index $config[5][8][10] = "whatever"; # write more undef index $config[9][10](); # read undef index and invoke it as function var_dump($config->array()); # show flattened array, not needed for iteration and whatever ... ?>
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