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authorDevian <devianleong@gmail.com>2021-04-22 17:11:12 +0800
committerDevian <devianleong@gmail.com>2021-04-22 17:11:12 +0800
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tree26091a1e5a821905b8bdba73fd1ddb95e12f887e /vendor/doctrine/collections/docs/en/derived-collections.rst
parent745cf2431a71d0e6c5f08f8605839279b2f7496e (diff)
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-Derived Collections
-===================
-
-You can create custom collection classes by extending the
-``Doctrine\Common\Collections\ArrayCollection`` class. If the
-``__construct`` semantics are different from the default ``ArrayCollection``
-you can override the ``createFrom`` method:
-
-.. code-block:: php
- final class DerivedArrayCollection extends ArrayCollection
- {
- /** @var \stdClass */
- private $foo;
-
- public function __construct(\stdClass $foo, array $elements = [])
- {
- $this->foo = $foo;
-
- parent::__construct($elements);
- }
-
- protected function createFrom(array $elements) : self
- {
- return new static($this->foo, $elements);
- }
- }