PHP- Get file type by URL

Question

I want to get the file type (eg. image/gif) by URL using PHP.I had tried

<?php
$image_path="http://fc04.deviantart.net/fs71/f/2010/227/4/6/PNG_Test_by_Destron23.png";
exif_imagetype($image_path);
?>

The above code gave me a blank page and the following code returned "3":

<?php
$image_path="http://fc04.deviantart.net/fs71/f/2010/227/4/6/PNG_Test_by_Destron23.png";
echo exif_imagetype($image_path);
?>

Where am I going wrong? Solved: using Fileinfo to fetch content type

score 15 · Answer 1 · answered Jul 12 '17 at 10:15

Here is a PHP function I came up with:

/**
 * @param $image_path
 * @return bool|mixed
 */
function get_image_mime_type($image_path)
{
    $mimes  = array(
        IMAGETYPE_GIF => "image/gif",
        IMAGETYPE_JPEG => "image/jpg",
        IMAGETYPE_PNG => "image/png",
        IMAGETYPE_SWF => "image/swf",
        IMAGETYPE_PSD => "image/psd",
        IMAGETYPE_BMP => "image/bmp",
        IMAGETYPE_TIFF_II => "image/tiff",
        IMAGETYPE_TIFF_MM => "image/tiff",
        IMAGETYPE_JPC => "image/jpc",
        IMAGETYPE_JP2 => "image/jp2",
        IMAGETYPE_JPX => "image/jpx",
        IMAGETYPE_JB2 => "image/jb2",
        IMAGETYPE_SWC => "image/swc",
        IMAGETYPE_IFF => "image/iff",
        IMAGETYPE_WBMP => "image/wbmp",
        IMAGETYPE_XBM => "image/xbm",
        IMAGETYPE_ICO => "image/ico");

    if (($image_type = exif_imagetype($image_path))
        && (array_key_exists($image_type ,$mimes)))
    {
        return $mimes[$image_type];
    }
    else
    {
        return FALSE;
    }
}

I get this code and works! thanks. Only copy and paste. workfull! — Sergio Cabral, Jul 11 '18 at 13:05

score 13 · Answer 2 · answered May 31 '20 at 10:33

13

the best way for my understanding

if (!function_exists('getUrlMimeType')) {
    function getUrlMimeType($url)
    {
        $buffer = file_get_contents($url);
        $finfo = new finfo(FILEINFO_MIME_TYPE);
        return $finfo->buffer($buffer);
    }
}

is to create function depend on finfo class

answered May 31 '20 at 10:33

Jehad Ahmad Jaghoub

1,225
14
22

2

This should be the approved answer. It's the cleanest imo – Dan Iftinca Dec 02 '20 at 22:12

score 9 · Accepted Answer · edited Oct 04 '18 at 01:42

9

<?php
 $image_path="http://fc04.deviantart.net/fs71/f/2010/227/4/6/PNG_Test_by_Destron23.png";
 echo exif_imagetype($image_path);
?>

It returned 3 because png response type as maciej said.

Try this to get like this image/png:

echo mime_content_type($image_path);

Try this:

$finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension   
echo finfo_file($finfo, $image_path) . "\n";
finfo_close($finfo);

edited Oct 04 '18 at 01:42

Rafael

7,605
13
31
46

answered Sep 18 '14 at 17:32

Avis

505
4
14

When I store url in $image_path it says: Warning: mime_content_type($image_path) [function.mime-content-type]: failed to open stream: No such file or directory in /home/appfesti/public_html/y.php on line 4 – Ashish Srivastava Sep 18 '14 at 17:37
yes it is deprecated... $finfo = finfo_open(FILEINFO_MIME_TYPE); – Avis Sep 18 '14 at 17:43
@jGrice Can I use fileinfo with url? – Ashish Srivastava Sep 18 '14 at 17:48
got it?@AshishSrivastava – Avis Sep 18 '14 at 17:55
@user3923716 When I used URL i got **Warning: finfo_file() [function.finfo-file]: Failed identify data 0:(null)**. So I decided to store the file on my server instead of querying with url :) – Ashish Srivastava Sep 18 '14 at 18:01
@Avis Can you provide System info where you was able to successfully run finfo_open() by URL? – 66Ton99 Jun 09 '16 at 16:21

score 6 · Answer 4 · answered Sep 18 '14 at 17:34

You are not going wrong anywhere. exif_imagetype returns the value of one of the image type constants: http://php.net/manual/en/image.constants.php

If you would like to convert this to an extension string, you could use a switch statement:

$typeString = null;
$typeInt = exif_imagetype($image_path);
switch($typeInt) {
  case IMG_GIF:
    $typeString = 'image/gif';
    break;
  case IMG_JPG:
    $typeString = 'image/jpg';
    break;
  case IMG_JPEG:
    $typeString = 'image/jpeg';
    break;
  case IMG_PNG:
    $typeString = 'image/png';
    break;
  case IMG_WBMP:
    $typeString = 'image/wbmp';
    break;
  case IMG_XPM:
    $typeString = 'image/xpm';
    break;
  default: 
    $typeString = 'unknown';
}

You may want to change the order to most to least frequently expected for better performance.

The `IMG_JPG` case should be removed, `image/jpg` is not a valid MIME type. — timetofly, Sep 28 '17 at 17:02

score 3 · Answer 5 · answered Sep 18 '14 at 17:25

3

In the first example, you're getting a blank page because you're not doing anything with the return value from the function call. In the second example, you're getting a valid response. See the manual page for exif_imagetype() for a list of what the values mean.

answered Sep 18 '14 at 17:25

Alex Howansky

50,515
8
78
98

1

thanx for the link, we can use `image_type_to_mime_type(exif_imagetype($url))` to get the `'image/xxx'` mime type – ctf0 Jan 11 '18 at 20:36

score 2 · Answer 6 · answered Sep 18 '14 at 17:26

2

exif_imagetype returns the image type. The response, 3, indicates it is IMAGETYPE_PNG, the correct response.

answered Sep 18 '14 at 17:26

Grice

1,345
11
24

isnt it possible to get output like "image/png"? – Ashish Srivastava Sep 18 '14 at 17:29
You can either hard code a switch and compare the value against it, or use finfo_file to get the MIME type (image/png) – Grice Sep 18 '14 at 17:37

score 1 · Answer 7 · answered Sep 18 '14 at 17:27

1

3 is image type response for PNG image. See: http://php.net/manual/en/function.exif-imagetype.php

answered Sep 18 '14 at 17:27

Maciej Asembler

656
3
5

isnt it possible to get output like "image/png"? – Ashish Srivastava Sep 18 '14 at 17:28
then you have to write...mime_content_type @AshishSrivastava – Avis Sep 18 '14 at 17:29
1

@user3923716 I get: Warning: mime_content_type() [function.mime-content-type]: Failed identify data 0:(null) in /home/appfesti/public_html/y.php on line 4 – Ashish Srivastava Sep 18 '14 at 17:33

PHP- Get file type by URL

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