array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'de', ), 'this' => array ( 0 => 'function.is-iterable.php', 1 => 'is_iterable', ), 'up' => array ( 0 => 'ref.var.php', 1 => 'Funktionen zur Behandlung von Variablen', ), 'prev' => array ( 0 => 'function.is-integer.php', 1 => 'is_integer', ), 'next' => array ( 0 => 'function.is-long.php', 1 => 'is_long', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/var/functions/is-iterable.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 7 >= 7.1.0, PHP 8)
is_iterable — Verify that the contents of a variable is an iterable value
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
value
The value to check
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)
?>