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SplObjectStorage::valid

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

SplObjectStorage::valid — Returns if the current iterator entry is valid

Beschreibung

public SplObjectStorage::valid(): bool

Returns if the current iterator entry is valid.

Parameter-Liste

Diese Funktion besitzt keine Parameter.

Rückgabewerte

Returns true if the iterator entry is valid, false otherwise.

Beispiele

Beispiel #1 SplObjectStorage::valid() example

<?php
$s = new SplObjectStorage();

$o1 = new stdClass;
$o2 = new stdClass;

$s->attach($o1, "d1");
$s->attach($o2, "d2");

$s->rewind();
while($s->valid()) {
echo $s->key()."\n";
$s->next();
}
?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

0
1

Siehe auch