respect-validation/docs/Countable.md

Countable

• Countable()

Validates if the input is countable, in other words, if you're allowed to use count() function on it.

v::countable()->validate([]); // true
v::countable()->validate(new ArrayObject()); // true
v::countable()->validate('string'); // false

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See also:

• ArrayVal
• Instance
• IterableType