PHP 8.1.15 Released!

ReflectionClass::isIterable

(PHP 7 >= 7.2.0, PHP 8)

ReflectionClass::isIterableCheck whether this class is iterable

Descrição

public ReflectionClass::isIterable(): bool

Check whether this class is iterable (i.e. can be used inside foreach).

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

Retorna true em caso de sucesso ou false em caso de falha.

Exemplos

Exemplo #1 Basic ReflectionClass::isIterable() Usage

<?php

class IteratorClass implements Iterator {
public function
__construct() { }
public function
key() { }
public function
current() { }
function
next() { }
function
valid() { }
function
rewind() { }
}
class
DerivedClass extends IteratorClass { }
class
NonIterator { }

function
dump_iterable($class) {
$reflection = new ReflectionClass($class);
var_dump($reflection->isIterable());
}

$classes = array("ArrayObject", "IteratorClass", "DerivedClass", "NonIterator");

foreach (
$classes as $class) {
echo
"Is $class iterable? ";
dump_iterable($class);
}
?>

O exemplo acima irá imprimir:

Is ArrayObject iterable? bool(true)
Is IteratorClass iterable? bool(true)
Is DerivedClass iterable? bool(true)
Is NonIterator iterable? bool(false)

Veja Também

add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top