PHP Dokumentation: Splobjectstorage key
12. Januar 2010 von werner
SplObjectStorage::key
(PHP 5 >= 5.1.0)
SplObjectStorage::key — Returns the index at which the iterator currently is
Beschreibung
public int SplObjectStorage::key ( void )
Returns the index at which the iterator currently is.
Parameter-Liste
Diese Funktion hat keine Parameter.
Rückgabewerte
The index corresponding to the position of the iterator.
Beispiele
Beispiel #1 SplObjectStorage::key() example
<?php
$s = new SplObjectStorage();$o1 = new StdClass;
$o2 = new StdClass;$s->attach($o1, "d1");
$s->attach($o2, "d2");$s->rewind();
while($s->valid()) {
$index = $s->key();
$object = $s->current(); // similar to current($s)
var_dump($index);
var_dump($object);
$s->next();
}
?>Das oben gezeigte Beispiel erzeugteine ähnliche Ausgabe wie:
int(0)object(stdClass)#2 (0) {}int(1)object(stdClass)#3 (0) {}Siehe auch
- SplObjectStorage::rewind – Rewind the iterator to the first storage element
- SplObjectStorage::current – Returns the current storage entry
- SplObjectStorage::next – Move to the next entry
- SplObjectStorage::valid – Returns if the current iterator entry is valid
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