DirectoryIterator::getExtension

(PHP 5 >= 5.3.6, PHP 7)

DirectoryIterator::getExtensionGets the file extension

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public DirectoryIterator::getExtension ( void ) : string

Retrieves the file extension.

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

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Example #1 DirectoryIterator::getExtension() example

<?php

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

?>

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Note:

This method is only available as of PHP 5.3.6. Another way of getting the extension is to use the pathinfo() function.

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

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