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<?php |
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namespace DICIT; |
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class ArrayResolver implements \Iterator, \Countable, \ArrayAccess |
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{ |
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private $source; |
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public function __construct(array $source = null) |
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{ |
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if ($source == null) { |
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$source = array(); |
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} |
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$this->source = $source; |
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} |
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public function extract() |
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{ |
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return $this->source; |
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} |
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/** |
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* Resolves a value stored in an array, optionally by using dot notation to access nested elements. |
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* |
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* @param string $key |
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* The key value to resolve. |
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* @param mixed $default |
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* @return mixed The resolved value or the provided default value. |
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*/ |
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public function resolve($key, $default = null) |
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{ |
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$toReturn = $default; |
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$dotted = explode(".", $key); |
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if (count($dotted) > 1) { |
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$currentDepthData = $this->source; |
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foreach ($dotted as $paramKey) { |
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if (array_key_exists($paramKey, $currentDepthData)) { |
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$currentDepthData = $currentDepthData[$paramKey]; |
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} else { |
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return $this->wrapIfNecessary($default); |
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} |
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} |
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return $this->wrapIfNecessary($currentDepthData); |
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} |
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elseif (array_key_exists($key, $this->source)) { |
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$toReturn = $this->source[$key]; |
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} |
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return $this->wrapIfNecessary($toReturn); |
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} |
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private function wrapIfNecessary($value) |
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{ |
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if (is_array($value)) { |
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return new static($value); |
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} |
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return $value; |
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} |
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public function rewind() |
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{ |
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reset($this->source); |
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} |
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public function current() |
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{ |
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return $this->wrapIfNecessary(current($this->source)); |
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} |
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public function key() |
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{ |
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return key($this->source); |
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} |
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public function next() |
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{ |
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return next($this->source); |
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} |
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public function valid() |
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{ |
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$key = key($this->source); |
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return ($key !== null && $key !== false); |
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} |
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public function count() |
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{ |
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return count($this->source); |
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} |
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public function offsetSet($offset, $value) |
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{ |
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if (is_null($offset)) { |
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$this->source[] = $value; |
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} else { |
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$this->source[$offset] = $value; |
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} |
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} |
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public function offsetExists($offset) |
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{ |
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return isset($this->source[$offset]); |
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} |
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public function offsetUnset($offset) |
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{ |
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unset($this->source[$offset]); |
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} |
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public function offsetGet($offset) |
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{ |
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return isset($this->source[$offset]) ? $this->source[$offset] : null; |
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} |
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} |
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oliviermadre /
dic-it
