php how to get image from url without knowing extension

Question

I would like to retrieve an image from a given url, i have the filename but the issue i have is that the extension is unknown. It could be either, jpg, gif or png.

This is how i have approached it but doesnt seem to be working:

$extensions = array('jpg', 'png', 'gif');
    foreach ($extensions as $ext) {
        if (file_exists('https://mytestimage.com/products/3c763dce-666b-4ba9-a05a-cca846391aea/thumb.' . $ext)) {
            echo 'Found filename.' . $ext;
            break;
        }
    }

Any suggestions?

lol the question has been closed but you can find what you want here: http://stackoverflow.com/questions/17122218/get-all-the-images-from-a-folder-in-php — Jeffery ThaGintoki, May 19 '15 at 14:56
So what is exactly happening? It doesn't echo FoundFilename etc.. ? — SK2017, May 19 '15 at 14:58
This was incorrectly marked as duplicate. The question is about off-site images, *not* on-site ones. The "duplicate" in question will not work for this. — Muhammad Abdul-Rahim, May 19 '15 at 14:58
Is it possible to check if an file exists on an external website? If not your code can't work — Jakob Leifhelm, May 19 '15 at 15:03

score 2 · Accepted Answer · edited May 23 '17 at 12:28

2

Since the file is off-site, check if the URL exists instead.

$file = 'http://example.com/image.jpg';
$fileHeaders = @get_headers($file);
if( $fileHeaders[0]=='HTTP/1.1 404 Not Found')
{
    // File doesn't exist
}
else
{
    // File exists
}

You can apply this logic to your loop for the different extensions.

References: PHP.net & SO

edited May 23 '17 at 12:28

Community

1
1

answered May 19 '15 at 14:55

Muhammad Abdul-Rahim

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31

Thanks, this pointed me in the right direction! – danyo May 19 '15 at 15:24

php how to get image from url without knowing extension

1 Answers1