Gets the file extension

# DirectoryIterator::getExtension

(PHP 5 >= 5.3.6, PHP 7)

DirectoryIterator::getExtension — Gets the file extension

### Descrierea

public DirectoryIterator::getExtension ( void ) : string

Retrieves the file extension.

### Parametri

Această funcție nu are parametri.

### Valorile întoarse

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

### Exemple

Example #1 DirectoryIterator::getExtension() example

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

Exemplul de mai sus va afișa ceva similar cu:

    php
    txt
    jpg
    gz

### Note

> Notă:

> 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);
> ?>`

### A se vedea și

- DirectoryIterator::getFilename() - Return file name of current DirectoryIterator item
- DirectoryIterator::getBasename() - Get base name of current DirectoryIterator item
- pathinfo() - Returns information about a file path