symfony - clone doctrine ArrayCollection without reference -


when 

$originaltags = $task->gettags(); $task->removetag($tag1);

then $tag1 removed in $originaltags. assignment of arraycollections made reference, how can clone new arraycollection?

you can use native php clone object cloning.

$originaltags = $task->gettags(); $task2 = clone $task; $task2->removetag($tag1);

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