Yii2: ArrayHelper::merge() gives duplicated for integer key values

[odai-alali]

If each array has an element with the same string key value, the latter will overwrite the former (different from array_merge_recursive).

however, merging this to array twice
["pluginOptions" => ["allowedFileTypes" => ["image"]]]
will give
["pluginOptions" => ["allowedFileTypes" => [0 => "image", 1 => "image"]]]

Shouldn't these values overriden? It would be usefull in merging config arrays for widgets

[klimov-paul]

This is expected behavior.

[yii-bot]

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[odai-alali]

Yes i know that it works for string key, i qouted the documentation that says that

I am suggesting to make it possible to override duplicate values too, we are using this method extensivly with merging config arrays, having this ability in this method would be helpful

[rob006]

http://www.yiiframework.com/doc-2.0/yii-helpers-replacearrayvalue.html