class MyDirectoryIterator extends DirectoryIterator
{
public function getExtension()
{
return pathinfo($this->getFilename(), PATHINFO_EXTENSION);
}
}
(PHP 5, PHP 7)
DirectoryIterator::getFilename — Return file name of current DirectoryIterator item.
Get the file name of the current DirectoryIterator item.
此函数没有参数。
Returns the file name of the current DirectoryIterator item.
Example #1 A DirectoryIterator::getFilename() example
This example will list the contents of the directory containing the script.
<?php
$dir = new DirectoryIterator(dirname(__FILE__));
foreach ($dir as $fileinfo) {
echo $fileinfo->getFilename() . "\n";
}
?>
以上例程的输出类似于：
. .. apple.jpg banana.jpg index.php pear.jpg
class MyDirectoryIterator extends DirectoryIterator
{
public function getExtension()
{
return pathinfo($this->getFilename(), PATHINFO_EXTENSION);
}
}