DirectoryIterator::valid

(PHP 5)

DirectoryIterator::valid — Check whether current DirectoryIterator position is a valid file

Descripción

public bool DirectoryIterator::valid ( void )

Check whether current DirectoryIterator position is a valid file.

Parámetros

Esta función no tiene parámetros.

Valores devueltos

Returns TRUE if the position is valid, otherwise FALSE

Ejemplos

Example #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

?>

Ver también

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() - Comprueba si la posición actual es válido

add a note User Contributed Notes DirectoryIterator::valid

josh dot butts at vertive dot com 02-Sep-2008 04:47


This function, as far as I can tell, returns boolean, not string.



$di = new DirectoryIterator(/path/to/iterate);

while ($di->valid())

{

    echo $di->getPathname() . "\n";

    $di->next();

}

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