如何合并两个php Doctrine 2 ArrayCollection() [英] How to merge two php Doctrine 2 ArrayCollection()
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问题描述
ArrayCollection()
?如下所示: $ 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现在包含{$ obj1,$ obj2,$ obj3,$ obj4,$ obj5,$ obj6}
我只是想知道我是否可以救我迭代第二个集合,并逐个添加每个元素到第一个集合。
谢谢!
解决方案
对我来说,更好(和工作)变体:
$ collection3 = new ArrayCollection(
array_merge($ collection1-> toArray(),$ collection2-> toArray())
);
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 }
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.
Thanks!
解决方案
Better (and working) variant for me:
$collection3 = new ArrayCollection(
array_merge($collection1->toArray(), $collection2->toArray())
);
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