如何合并两个 php Doctrine 2 ArrayCollection() [英] How to merge two php Doctrine 2 ArrayCollection()

问题描述

是否有任何方便的方法可以让我连接两个 Doctrine ArrayCollection()?类似:

Is there any convenience method that allows me to concatenate two Doctrine ArrayCollection()? something like:

$collection1 = new ArrayCollection();
$collection2 = new ArrayCollection();

$collection1->add($obj1);
$collection1->add($obj2);
$collection1->add($obj3);

$collection2->add($obj4);
$collection2->add($obj5);
$collection2->add($obj6);

$collection1->concat($collection2);

// $collection1 now contains {$obj1, $obj2, $obj3, $obj4, $obj5, $obj6 }

我只想知道我是否可以省去迭代第二个集合并将每个元素一个一个地添加到第一个集合中的过程.

I just want to know if I can save me iterating over the 2nd collection and adding each element one by one to the 1st collection.

谢谢！

推荐答案

对我来说更好(和工作)的变体:

Better (and working) variant for me:

$collection3 = new ArrayCollection(
    array_merge($collection1->toArray(), $collection2->toArray())
);

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