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<?php |
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/** |
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* Structure |
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* |
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* Access properties with associative array or object notation seamlessly. |
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* |
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* @package core |
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* @author [email protected] |
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* @copyright Caffeina srl - 2015 - http://caffeina.it |
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*/ |
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class Structure extends ArrayObject { |
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/** |
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* An Structure can wrap a StdClass, an array or an object from a JSON encoded string. |
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* |
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* This class is useful for wrapping API responses and access their properties in |
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* an easy way. |
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* |
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* @param mixed $input The object/array/json_encoded object to wrap |
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* @param boolean $deep Wrap also deep branches as Objects |
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*/ |
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public function __construct($input=[], $deep=true){ |
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$data = is_string($input) ? json_decode($input,true) : (array)$input; |
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if (is_array($data)){ |
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if ($deep) { |
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foreach ($data as $key => &$value) { |
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if (is_array($value) || is_a($value,'stdClass')){ |
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$value = new self($value); |
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} |
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} |
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} |
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parent::__construct($data, static::ARRAY_AS_PROPS); |
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} else { |
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throw new InvalidArgumentException( |
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'Argument must be a string containing valid JSON, an array or an stdClass.' |
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); |
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} |
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} |
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/** |
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* ArrayObject::offsetSet |
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*/ |
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public function offsetSet($key, $value){ |
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if ( is_array($value) ) |
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parent::offsetSet($key, new static($value)); |
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else |
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parent::offsetSet($key, $value); |
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} |
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/** |
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* ArrayObject::offsetGet |
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*/ |
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public function offsetGet($key){ |
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$raw = parent::offsetGet($key); |
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return is_callable($raw) ? call_user_func($raw) : $raw; |
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} |
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/** |
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* Emulate object methods |
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*/ |
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public function __call($method, $args){ |
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$raw = parent::offsetGet($method); |
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if (is_callable($raw)) { |
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if ($raw instanceof \Closure) $raw->bindTo($this); |
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return call_user_func_array($raw, $args); |
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} |
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} |
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/** |
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* If casted as a string, return a JSON rappresentation of the wrapped payload |
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* @return string |
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*/ |
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public function __toString(){ |
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return json_encode($this,JSON_NUMERIC_CHECK); |
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} |
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/** |
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* Dot-Notation Array Path Resolver |
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* @param string $path The dot-notation path |
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* @param array $root The array to navigate |
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* @return mixed The pointed value |
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*/ |
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public static function fetch($path, $root) { |
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$_ = (array)$root; |
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if (strpos($path,'.') === false) { |
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return isset($_[$path]) ? $_[$path] : null; |
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} else { |
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list($frag,$rest) = explode('.', $path, 2); |
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if ($rest) { |
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return isset($_[$frag]) ? self::fetch($rest, $_[$frag]) : null; |
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} elseif ($frag) { |
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return (array)$_[$frag]; |
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} else { |
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return null; |
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} |
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} |
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} |
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public static function create($class, $args = null){ |
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return is_array($args) ? (new ReflectionClass($class))->newInstanceArgs($args) : new $class; |
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} |
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public static function canBeString($var) { |
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return $var === null || is_scalar($var) || is_callable([$var, '__toString']); |
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} |
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} |
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caffeina-core /
core
