is_iterable
(PHP 7 >= 7.1.0, PHP 8)
is_iterable — Verify that the contents of a variable is an iterable value
Beschreibung
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)
?>