DirectoryIterator::valid
(PHP 5, PHP 7, PHP 8)
DirectoryIterator::valid — Check whether current DirectoryIterator position is a valid file
Beschreibung
Check whether current DirectoryIterator position is a valid file.
Parameter-Liste
Diese Funktion besitzt keine Parameter.
Rückgabewerte
Returns true
if the position is valid, otherwise false
Beispiele
Beispiel #1 A DirectoryIterator::valid() example
<?php
$iterator = new DirectoryIterator(dirname(__FILE__));
// Loop to end of iterator
while($iterator->valid()) {
$iterator->next();
}
$iterator->valid(); // FALSE
$iterator->rewind();
$iterator->valid(); // TRUE
?>
Siehe auch
- DirectoryIterator::current() - Return the current DirectoryIterator item
- DirectoryIterator::key() - Return the key for the current DirectoryIterator item
- DirectoryIterator::next() - Move forward to next DirectoryIterator item
- DirectoryIterator::rewind() - Rewind the DirectoryIterator back to the start
- Iterator::valid() - Prüft, ob die aktuelle Position zulässig ist