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<?php |
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/** |
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* @link https://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license https://www.yiiframework.com/license/ |
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*/ |
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namespace yii\web; |
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use ArrayIterator; |
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use Yii; |
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use yii\base\BaseObject; |
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use yii\base\InvalidCallException; |
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/** |
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* CookieCollection maintains the cookies available in the current request. |
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* |
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* For more details and usage information on CookieCollection, see the [guide article on handling cookies](guide:runtime-sessions-cookies). |
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* |
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* @property-read int $count The number of cookies in the collection. |
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* |
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* @author Qiang Xue <[email protected]> |
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* @since 2.0 |
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*/ |
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class CookieCollection extends BaseObject implements \IteratorAggregate, \ArrayAccess, \Countable |
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{ |
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/** |
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* @var bool whether this collection is read only. |
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*/ |
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public $readOnly = false; |
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/** |
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* @var Cookie[] the cookies in this collection (indexed by the cookie names) |
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*/ |
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private $_cookies; |
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/** |
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* Constructor. |
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* @param array $cookies the cookies that this collection initially contains. This should be |
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* an array of name-value pairs. |
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* @param array $config name-value pairs that will be used to initialize the object properties |
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*/ |
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public function __construct($cookies = [], $config = []) |
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{ |
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$this->_cookies = $cookies; |
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parent::__construct($config); |
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} |
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/** |
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* Returns an iterator for traversing the cookies in the collection. |
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* This method is required by the SPL interface [[\IteratorAggregate]]. |
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* It will be implicitly called when you use `foreach` to traverse the collection. |
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* @return ArrayIterator<string, Cookie> an iterator for traversing the cookies in the collection. |
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*/ |
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#[\ReturnTypeWillChange] |
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public function getIterator() |
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{ |
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return new ArrayIterator($this->_cookies); |
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} |
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/** |
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* Returns the number of cookies in the collection. |
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* This method is required by the SPL `Countable` interface. |
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* It will be implicitly called when you use `count($collection)`. |
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* @return int the number of cookies in the collection. |
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*/ |
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#[\ReturnTypeWillChange] |
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public function count() |
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{ |
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return $this->getCount(); |
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} |
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/** |
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* Returns the number of cookies in the collection. |
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* @return int the number of cookies in the collection. |
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*/ |
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public function getCount() |
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{ |
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return count($this->_cookies); |
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} |
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/** |
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* Returns the cookie with the specified name. |
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* @param string $name the cookie name |
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* @return Cookie|null the cookie with the specified name. Null if the named cookie does not exist. |
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* @see getValue() |
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*/ |
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public function get($name) |
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{ |
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return isset($this->_cookies[$name]) ? $this->_cookies[$name] : null; |
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} |
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/** |
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* Returns the value of the named cookie. |
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* @param string $name the cookie name |
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* @param mixed $defaultValue the value that should be returned when the named cookie does not exist. |
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* @return mixed the value of the named cookie. |
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* @see get() |
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*/ |
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public function getValue($name, $defaultValue = null) |
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{ |
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return isset($this->_cookies[$name]) ? $this->_cookies[$name]->value : $defaultValue; |
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} |
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/** |
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* Returns whether there is a cookie with the specified name. |
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* Note that if a cookie is marked for deletion from browser or its value is an empty string, this method will return false. |
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* @param string $name the cookie name |
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* @return bool whether the named cookie exists |
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* @see remove() |
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*/ |
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public function has($name) |
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{ |
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return isset($this->_cookies[$name]) && $this->_cookies[$name]->value !== '' |
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&& ($this->_cookies[$name]->expire === null |
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|| $this->_cookies[$name]->expire === 0 |
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|| ( |
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is_string($this->_cookies[$name]->expire) && strtotime($this->_cookies[$name]->expire) >= time() |
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|| $this->_cookies[$name]->expire >= time() |
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) |
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); |
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} |
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/** |
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* Adds a cookie to the collection. |
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* If there is already a cookie with the same name in the collection, it will be removed first. |
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* @param Cookie $cookie the cookie to be added |
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* @throws InvalidCallException if the cookie collection is read only |
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*/ |
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public function add($cookie) |
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{ |
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if ($this->readOnly) { |
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throw new InvalidCallException('The cookie collection is read only.'); |
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} |
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$this->_cookies[$cookie->name] = $cookie; |
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} |
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/** |
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* Removes a cookie. |
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* If `$removeFromBrowser` is true, the cookie will be removed from the browser. |
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* In this case, a cookie with outdated expiry will be added to the collection. |
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* @param Cookie|string $cookie the cookie object or the name of the cookie to be removed. |
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* @param bool $removeFromBrowser whether to remove the cookie from browser |
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* @throws InvalidCallException if the cookie collection is read only |
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*/ |
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public function remove($cookie, $removeFromBrowser = true) |
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{ |
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if ($this->readOnly) { |
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throw new InvalidCallException('The cookie collection is read only.'); |
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} |
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if ($cookie instanceof Cookie) { |
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$cookie->expire = 1; |
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$cookie->value = ''; |
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} else { |
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$cookie = Yii::createObject([ |
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'class' => 'yii\web\Cookie', |
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'name' => $cookie, |
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'expire' => 1, |
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]); |
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} |
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if ($removeFromBrowser) { |
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$this->_cookies[$cookie->name] = $cookie; |
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} else { |
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unset($this->_cookies[$cookie->name]); |
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} |
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} |
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/** |
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* Removes all cookies. |
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* @throws InvalidCallException if the cookie collection is read only |
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*/ |
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public function removeAll() |
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{ |
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if ($this->readOnly) { |
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throw new InvalidCallException('The cookie collection is read only.'); |
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} |
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$this->_cookies = []; |
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} |
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/** |
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* Returns the collection as a PHP array. |
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* @return Cookie[] the array representation of the collection. |
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* The array keys are cookie names, and the array values are the corresponding cookie objects. |
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*/ |
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public function toArray() |
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{ |
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return $this->_cookies; |
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} |
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/** |
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* Populates the cookie collection from an array. |
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* @param array $array the cookies to populate from |
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* @since 2.0.3 |
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*/ |
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public function fromArray(array $array) |
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{ |
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$this->_cookies = $array; |
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} |
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/** |
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* Returns whether there is a cookie with the specified name. |
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* This method is required by the SPL interface [[\ArrayAccess]]. |
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* It is implicitly called when you use something like `isset($collection[$name])`. |
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* @param string $name the cookie name |
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* @return bool whether the named cookie exists |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetExists($name) |
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{ |
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return $this->has($name); |
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} |
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/** |
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* Returns the cookie with the specified name. |
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* This method is required by the SPL interface [[\ArrayAccess]]. |
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* It is implicitly called when you use something like `$cookie = $collection[$name];`. |
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* This is equivalent to [[get()]]. |
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* @param string $name the cookie name |
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* @return Cookie|null the cookie with the specified name, null if the named cookie does not exist. |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetGet($name) |
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{ |
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return $this->get($name); |
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} |
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/** |
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* Adds the cookie to the collection. |
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* This method is required by the SPL interface [[\ArrayAccess]]. |
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* It is implicitly called when you use something like `$collection[$name] = $cookie;`. |
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* This is equivalent to [[add()]]. |
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* @param string $name the cookie name |
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* @param Cookie $cookie the cookie to be added |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetSet($name, $cookie) |
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{ |
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$this->add($cookie); |
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} |
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/** |
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* Removes the named cookie. |
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* This method is required by the SPL interface [[\ArrayAccess]]. |
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* It is implicitly called when you use something like `unset($collection[$name])`. |
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* This is equivalent to [[remove()]]. |
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* @param string $name the cookie name |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetUnset($name) |
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{ |
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$this->remove($name); |
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} |
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} |
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