is_countable

    (PHP 7 >= 7.3.0, PHP 8)

    is_countable — Verify that the contents of a variable is a countable value

    Description

    is_countable(mixed $value): bool

    Verify that the contents of a variable is an array or an object implementing Countable

    Parameters

    value

    The value to check

    Return Values

    Returns true if value is countable, false otherwise.

    Changelog

    Version Description
    7.3.0 is_countable() has been added.

    Examples

    Example #1 is_countable() examples

    <?php
    var_dump    (is_countable([1, 2, 3])); // bool(true)
    var_dump(is_countable(new ArrayIterator(['foo', 'bar', 'baz']))); // bool(true)
    var_dump(is_countable(new ArrayIterator())); // bool(true)
    var_dump(is_countable(new stdClass())); // bool(false)

    See Also

    • is_array() - Finds whether a variable is an array
    • is_object() - Finds whether a variable is an object
    • is_iterable() - Verify that the contents of a variable is an iterable value
    • is_bool() - Finds out whether a variable is a boolean

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