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<?php |
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namespace Brendt\Stitcher\Lib; |
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class WalkableArray implements \ArrayAccess, \Iterator |
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{ |
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const TOKEN_NESTING = '.'; |
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const TOKEN_REPETITION = '*'; |
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private $array = []; |
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private $position = 0; |
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public function __construct(array $array = []) { |
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$this->array = $array; |
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} |
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public static function fromArray(array $array): WalkableArray { |
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return new self($array); |
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} |
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public function get($pathParts, array $element = null) { |
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if (!is_array($pathParts)) { |
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$pathParts = explode(self::TOKEN_NESTING, $pathParts); |
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} |
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if (!$element) { |
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$element = $this->array; |
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} |
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foreach ($pathParts as $key => $pathPart) { |
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if ($pathPart === self::TOKEN_REPETITION && is_array($element)) { |
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$result = new self(); |
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$partialPath = array_splice($pathParts, $key + 1); |
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foreach ($element as $items) { |
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$result[] = $this->get($partialPath, $items); |
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} |
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return $result; |
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} |
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if (!isset($element[$pathPart])) { |
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return null; |
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} |
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$element = $element[$pathPart]; |
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} |
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return $element; |
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} |
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public function set($pathParts, $value, &$element = null, array $callbackArguments = []): WalkableArray { |
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if (!is_array($pathParts)) { |
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$pathParts = explode(self::TOKEN_NESTING, $pathParts); |
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} |
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end($pathParts); |
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$lastPathKey = key($pathParts); |
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reset($pathParts); |
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if (!$element) { |
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$element = &$this->array; |
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} |
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foreach ($pathParts as $key => $pathPart) { |
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if ($pathPart === self::TOKEN_REPETITION && is_array($element)) { |
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$partialPath = array_splice($pathParts, $key + 1); |
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foreach ($element as $itemKey => &$item) { |
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$this->set($partialPath, $value, $item, [new self($item), $itemKey]); |
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} |
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return $this; |
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} |
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if (!isset($element[$pathPart])) { |
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$element[$pathPart] = $key === $lastPathKey ? null : []; |
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} |
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$element = &$element[$pathPart]; |
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} |
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if ($value instanceof \Closure) { |
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$element = call_user_func_array($value, $callbackArguments); |
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} else { |
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$element = $value; |
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} |
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unset($element); |
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return $this; |
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} |
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public function toArray(): array { |
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$array = $this->array; |
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reset($array); |
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return $array; |
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} |
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public function current() { |
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return current($this->array); |
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} |
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public function offsetGet($offset) { |
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return isset($this->array[$offset]) ? $this->array[$offset] : $this->get($offset); |
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} |
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public function offsetSet($offset, $value) { |
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if (is_null($offset)) { |
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$this->array[] = $value; |
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} elseif (isset($this->array[$offset])) { |
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$this->array[$offset] = $value; |
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} else { |
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$this->set($offset, $value); |
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} |
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} |
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public function offsetExists($offset) { |
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return isset($this->array[$offset]) || $this->get($offset) !== null; |
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} |
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public function offsetUnset($offset) { |
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unset($this->array[$offset]); |
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} |
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public function next() { |
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++$this->position; |
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} |
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public function key() { |
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return $this->position; |
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} |
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public function valid() { |
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return isset($this->array[$this->position]); |
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} |
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public function rewind() { |
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$this->position = 0; |
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} |
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} |
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pageon /
stitcher-core
