Get an image extension from an uploaded file in Laravel

问题

I have been trying to get the extension from an uploaded file, searching on google, I got no results.

The file already exists in a path:

\Storage::get('/uploads/categories/featured_image.jpg);

Now, How can I get the extension of this file above?

Using input fields I can get the extension like this:

Input::file('thumb')->getClientOriginalExtension();

Thanks.

回答1:

You can use the pathinfo() function built into PHP for that:

$info = pathinfo(storage_path().'/uploads/categories/featured_image.jpg');
$ext = $info['extension'];

Or more concisely, you can pass an option get get it directly;

$ext = pathinfo(storage_path().'/uploads/categories/featured_image.jpg', PATHINFO_EXTENSION);

回答2:

The Laravel way

Try this:

$foo = \File::extension($filename);

回答3:

Yet another way to do it:

//Where $file is an instance of Illuminate\Http\UploadFile
$extension = $file->getClientOriginalExtension();

回答4:

Tested in laravel 5.5

$extension = $request->file('file')->extension();

回答5:

If you just want the extension, you can use pathinfo:

$ext = pathinfo($file_path, PATHINFO_EXTENSION);

回答6:

 //working code from laravel 5.2

 public function store(Request $request)
 {
          $file = $request->file('file');
            if($file)
            {
                    $extension =  $file->clientExtension();
            }
            echo $extension;
 }

回答7:

Or can use the Extension Splitter Trickster::getExtention() function of https://github.com/secrethash/trickster

Trickster::getExtention('some-funny.image.jpg'); It returns jpg

来源：https://stackoverflow.com/questions/38403558/get-an-image-extension-from-an-uploaded-file-in-laravel

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php

laravel

filesystems