364 lines
7.6 KiB
PHP
364 lines
7.6 KiB
PHP
<?php
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namespace Yansongda\Supports;
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use ArrayAccess;
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use ArrayIterator;
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use Countable;
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use IteratorAggregate;
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use JsonSerializable;
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use Serializable;
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class Collection implements ArrayAccess, Countable, IteratorAggregate, JsonSerializable, Serializable
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{
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/**
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* The collection data.
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*
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* @var array
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*/
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protected $items = [];
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/**
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* set data.
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*
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* @param mixed $items
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*/
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public function __construct(array $items = [])
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{
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foreach ($items as $key => $value) {
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$this->set($key, $value);
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}
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}
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/**
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* To string.
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*/
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public function __toString(): string
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{
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return $this->toJson();
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}
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/**
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* Get a data by key.
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*
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* @return mixed
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*/
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public function __get(string $key)
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{
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return $this->get($key);
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}
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/**
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* Assigns a value to the specified data.
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*
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* @param mixed $value
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*/
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public function __set(string $key, $value)
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{
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$this->set($key, $value);
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}
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/**
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* Whether or not an data exists by key.
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*/
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public function __isset(string $key): bool
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{
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return $this->has($key);
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}
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/**
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* Unsets an data by key.
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*/
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public function __unset(string $key)
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{
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$this->forget($key);
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}
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/**
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* Return all items.
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*/
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public function all(): array
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{
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return $this->items;
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}
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/**
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* Return specific items.
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*/
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public function only(array $keys): array
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{
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$return = [];
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foreach ($keys as $key) {
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$value = $this->get($key);
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if (!is_null($value)) {
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$return[$key] = $value;
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}
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}
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return $return;
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}
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/**
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* Get all items except for those with the specified keys.
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*
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* @param mixed $keys
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*
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* @return static
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*/
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public function except($keys)
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{
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$keys = is_array($keys) ? $keys : func_get_args();
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return new static(Arr::except($this->items, $keys));
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}
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/**
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* Merge data.
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*
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* @param Collection|array $items
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*/
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public function merge($items): array
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{
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foreach ($items as $key => $value) {
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$this->set($key, $value);
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}
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return $this->all();
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}
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/**
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* To determine Whether the specified element exists.
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*/
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public function has(string $key): bool
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{
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return !is_null(Arr::get($this->items, $key));
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}
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/**
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* Retrieve the first item.
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*
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* @return mixed
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*/
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public function first()
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{
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return reset($this->items);
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}
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/**
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* Retrieve the last item.
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*
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* @return mixed
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*/
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public function last()
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{
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$end = end($this->items);
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reset($this->items);
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return $end;
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}
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/**
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* add the item value.
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*
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* @param mixed $value
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*/
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public function add(string $key, $value)
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{
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Arr::set($this->items, $key, $value);
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}
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/**
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* Set the item value.
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*
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* @param mixed $value
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*/
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public function set(string $key, $value)
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{
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Arr::set($this->items, $key, $value);
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}
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/**
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* Retrieve item from Collection.
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*
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* @param string $key
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* @param mixed $default
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*
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* @return mixed
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*/
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public function get(?string $key = null, $default = null)
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{
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return Arr::get($this->items, $key, $default);
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}
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/**
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* Remove item form Collection.
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*/
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public function forget(string $key)
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{
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Arr::forget($this->items, $key);
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}
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/**
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* Build to array.
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*/
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public function toArray(): array
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{
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return $this->all();
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}
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/**
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* Build to json.
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*/
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public function toJson(int $option = JSON_UNESCAPED_UNICODE): string
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{
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return json_encode($this->all(), $option);
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}
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/**
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* (PHP 5 >= 5.4.0)<br/>
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* Specify data which should be serialized to JSON.
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*
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* @see http://php.net/manual/en/jsonserializable.jsonserialize.php
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*
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* @return mixed data which can be serialized by <b>json_encode</b>,
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* which is a value of any type other than a resource
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*/
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public function jsonSerialize()
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{
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return $this->items;
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}
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/**
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* (PHP 5 >= 5.1.0)<br/>
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* String representation of object.
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*
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* @see http://php.net/manual/en/serializable.serialize.php
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*
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* @return string the string representation of the object or null
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*/
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public function serialize()
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{
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return serialize($this->items);
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}
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/**
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* (PHP 5 >= 5.0.0)<br/>
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* Retrieve an external iterator.
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*
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* @see http://php.net/manual/en/iteratoraggregate.getiterator.php
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*
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* @return ArrayIterator An instance of an object implementing <b>Iterator</b> or
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* <b>ArrayIterator</b>
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*/
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public function getIterator()
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{
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return new ArrayIterator($this->items);
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}
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/**
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* (PHP 5 >= 5.1.0)<br/>
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* Count elements of an object.
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*
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* @see http://php.net/manual/en/countable.count.php
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*
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* @return int The custom count as an integer.
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* </p>
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* <p>
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* The return value is cast to an integer
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*/
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public function count()
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{
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return count($this->items);
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}
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/**
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* (PHP 5 >= 5.1.0)<br/>
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* Constructs the object.
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*
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* @see http://php.net/manual/en/serializable.unserialize.php
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*
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* @param string $serialized <p>
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* The string representation of the object.
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* </p>
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*
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* @return mixed|void
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*/
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public function unserialize($serialized)
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{
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return $this->items = unserialize($serialized);
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}
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/**
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* (PHP 5 >= 5.0.0)<br/>
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* Whether a offset exists.
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*
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* @see http://php.net/manual/en/arrayaccess.offsetexists.php
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*
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* @param mixed $offset <p>
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* An offset to check for.
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* </p>
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*
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* @return bool true on success or false on failure.
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* The return value will be casted to boolean if non-boolean was returned
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*/
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public function offsetExists($offset)
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{
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return $this->has($offset);
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}
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/**
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* (PHP 5 >= 5.0.0)<br/>
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* Offset to unset.
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*
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* @see http://php.net/manual/en/arrayaccess.offsetunset.php
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*
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* @param mixed $offset <p>
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* The offset to unset.
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* </p>
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*/
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public function offsetUnset($offset)
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{
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if ($this->offsetExists($offset)) {
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$this->forget($offset);
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}
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}
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/**
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* (PHP 5 >= 5.0.0)<br/>
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* Offset to retrieve.
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*
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* @see http://php.net/manual/en/arrayaccess.offsetget.php
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*
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* @param mixed $offset <p>
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* The offset to retrieve.
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* </p>
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*
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* @return mixed Can return all value types
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*/
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public function offsetGet($offset)
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{
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return $this->offsetExists($offset) ? $this->get($offset) : null;
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}
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/**
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* (PHP 5 >= 5.0.0)<br/>
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* Offset to set.
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*
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* @see http://php.net/manual/en/arrayaccess.offsetset.php
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*
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* @param mixed $offset <p>
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* The offset to assign the value to.
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* </p>
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* @param mixed $value <p>
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* The value to set.
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* </p>
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*/
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public function offsetSet($offset, $value)
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{
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$this->set($offset, $value);
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}
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}
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