LaravelConf Taiwan 2019 announcement

DirectoryIterator::valid

(PHP 5, PHP 7)

DirectoryIterator::validCheck whether current DirectoryIterator position is a valid file

Description

public DirectoryIterator::valid ( void ) : bool

Check whether current DirectoryIterator position is a valid file.

Parameters

This function has no parameters.

Return Values

Returns TRUE if the position is valid, otherwise FALSE

Examples

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

?>

See Also

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