DirectoryIterator::getExtension

(PHP 5 >= 5.3.6, PHP 7, PHP 8)

DirectoryIterator::getExtension — Gets the file extension

Description

public DirectoryIterator::getExtension(): string

Retrieves the file extension.

Parameters

This function has no parameters.

Return Values

Returns a string containing the file extension, or an empty string if the file has no extension.

Examples

Example #1 DirectoryIterator::getExtension() example

<?php

$directory = new DirectoryIterator(__DIR__);
foreach ($directory as $fileinfo) {
    if ($fileinfo->isFile()) {
        echo $fileinfo->getExtension() . "\n";
    }
}

?>

The above example will output something similar to:

php
txt
jpg
gz

Notes

Note:
Another way of getting the extension is to use the pathinfo() function.

<?php $extension = pathinfo($fileinfo->getFilename(), PATHINFO_EXTENSION); ?>

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