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(PHP 5)
DirectoryIterator::valid — Check whether current DirectoryIterator position is a valid file
Check whether current DirectoryIterator position is a valid file.
此函数没有参数。
Returns TRUE
if the position is valid, otherwise FALSE
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
?>
[#1] josh dot butts at vertive dot com [2008-09-02 09:47:49]
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();
}