Get Image Extension

Get image extension

you can use image_type_to_extension function with image type returned by getimagesize:

$info = getimagesize($path);
$extension = image_type_to_extension($info[2]);

Get an image extension from an uploaded file in Laravel

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);

Get the file extension from images picked from gallery or camera, as string

 filePath.substring(filePath.lastIndexOf(".")); // Extension with dot .jpg, .png

or

 filePath.substring(filePath.lastIndexOf(".") + 1); // Without dot jpg, png

How to get the file extension in PHP?

No need to use string functions. You can use something that's actually designed for what you want: pathinfo():

$path = $_FILES['image']['name'];
$ext = pathinfo($path, PATHINFO_EXTENSION);

How to get Extension of image in angular?

You might use a regex using an alternation and the /i for a case insensitive comparison or string compare using toLowerCase:

let extn = "TIFf";const regex = /(?:pdf|jpeg|jpg|tiff?|gif|png)/i;if (regex.test(extn)) {  console.log(extn);}
let valid = [  "pdf", "tif", "tiff", "jpg", "jpeg", "gif", "png"];
if (valid.includes(extn.toLowerCase())) {  console.log(extn);}

How can i get image name and image extension from image url

You can use pathinfo() and parse_url():

$url = 'https://static01.nyt.com/images/2018/08/28/us/28vote_print/28vote_xp-articleLarge.jpg?quality=75&auto=webp&disable=upscale';

// Getting the name
$name = pathinfo(parse_url($url)['path'], PATHINFO_FILENAME);

// Getting the extension
$ext = pathinfo(parse_url($url)['path'], PATHINFO_EXTENSION);

// Output:
var_dump($name);    // 28vote_xp-articleLarge
var_dump($ext);     // jpg

How can I get file extensions with JavaScript?

Newer Edit: Lots of things have changed since this question was initially posted - there's a lot of really good information in wallacer's revised answer as well as VisioN's excellent breakdown

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Edit: Just because this is the accepted answer; wallacer's answer is indeed much better:

return filename.split('.').pop();

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My old answer:

return /[^.]+$/.exec(filename);

Should do it.

Edit: In response to PhiLho's comment, use something like:

return (/[.]/.exec(filename)) ? /[^.]+$/.exec(filename) : undefined;

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