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Editorial Team
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Asked: 2026-06-06T06:59:05+00:00

When you have an object that implements countable interface should you use $object->count() or

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When you have an object that implements countable interface should you use $object->count() or count($object)?

I understand that there is most likely very little difference, but if someone could explain if there is any difference at all, what that would technically be.

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1 Answer

  1. Editorial Team

    count() can be used both on arrays and Countable objects. If you are using $object->count() you are restricting your function to just objects. Using count() you allow arrays too.

    Apart from that there is no difference. You can see the implementation here: https://github.com/php/php-src/blob/master/ext/standard/array.c#L676

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