(PHP 5 >= 5.3.0, PHP 7)
FilesystemIterator::rewind — Rewinds back to the beginning
Rewinds the directory back to the start.
此函数没有参数。
没有返回值。
Example #1 FilesystemIterator::rewind() example
<?php
$iterator = new FilesystemIterator(dirname(__FILE__), FilesystemIterator::KEY_AS_FILENAME);
echo $iterator->key() . "\n";
$iterator->next();
echo $iterator->key() . "\n";
$iterator->rewind();
echo $iterator->key() . "\n";
?>
以上例程的输出类似于：
apple.jpg banana.jpg apple.jpg