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is_iterable

(PHP 7 >= 7.1.0, PHP 8)

is_iterable — Verify that the contents of a variable is an iterable value

Beschreibung

is_iterable(mixed $value): bool

Verify that the contents of a variable is accepted by the iterable pseudo-type, i.e. that it is either an array or an object implementing Traversable

Parameter-Liste

value

The value to check

Rückgabewerte

Returns true if value is iterable, false otherwise.

Beispiele

Beispiel #1 is_iterable() examples

<?php

var_dump(is_iterable([1, 2, 3])); // bool(true)
var_dump(is_iterable(new ArrayIterator([1, 2, 3]))); // bool(true)
var_dump(is_iterable((function () { yield 1; })())); // bool(true)
var_dump(is_iterable(1)); // bool(false)
var_dump(is_iterable(new stdClass())); // bool(false)

?>

Siehe auch