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): boolVerify 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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https://www.php.net/manual/en/function.is-countable.php