How to merge two php Doctrine 2 ArrayCollection()

arraycollection, doctrine-orm, php, symfony

Solution

Better (and working) variant for me:

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

Problem

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!

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