How can i check if image file exists on smarty using URL?

Question

I want to check if the webp image is exists on the server on smarty. The URL is an absolute URL like this.

i tried

{if file_exists("https://example.com/image.webp")}
{/if}

and

{if 'https://example.com/image.webp'}

{/if}

But none is working. Can anyone tell me how to do this?

Why don't you do this check in your controller? You cannot use file_exists() on a URL, but you can use it on a local file — Skyd, Sep 08 '20 at 13:10

user3478148 · Accepted Answer · 2020-09-08T15:41:31.377

2

In your controller, you should do something like:

if (file_exists($filename))

You could also do this in the view as you're trying to do now, but it's recommended to keep your logic separated from your view.

Don't forget to add the absolute path to the $filename variable.

Edit:

In case of smarty, you can do the following in your php script:

    $smarty = new Smarty();
    
    $fileExist = false;
    if (file_exists($filename)) {
      $fileExists = true;
    }

    $smarty->assign('fileExists', $fileExists);
    
    $smarty->display('index.tpl');

In the view/template, you can then simply do:

{if $fileExists}

edited Sep 08 '20 at 15:41

answered Sep 08 '20 at 13:12

user3478148

433
1
8
26

Can u pls suggest what code it will write on controller? – Muntashir Are Rahi Sep 08 '20 at 13:24
@MuntashirAreRahi I've edited my answer. Does this answer your question? If it doesn't, please show me your current php and .tpl file, so that I can elaborate. – user3478148 Sep 08 '20 at 15:42

Skyd · Answer 2 · 2020-09-08T14:32:17.263

In smarty, you cannot use file_exists() on a URL, but you can use it on a local file

I think, the best way is to check in your controller.

1st method:

In your controller, you can write something like that (path only): https://www.php.net/manual/fr/function.file-exists.php

$filename = '/example.com/image.webp'
if(!file_exist($filename))
    $filename = '/example.com/other_image.webp'

Then return the variable $filename

Other way :

If you want to check that the image exists from a URL then you should use this:

$file = 'http://www.example.com/somefile.jpg';
$file_headers = @get_headers($file);
if($file_headers[0] == 'HTTP/1.1 404 Not Found') {
    $exists = false;
}
else {
    $exists = true;
}

then //do something...

You can move @Skyd code to smarty modifier or function to use it directly in template. — r_a_f, Sep 09 '20 at 20:28

score 0 · Answer 3 · answered Oct 05 '22 at 08:25

0

You Have To Check File IN file_exists("var/www/html/example.com/image.webp") it will note Check Http or Https

answered Oct 05 '22 at 08:25

Santosh Sahoo

11
1

How can i check if image file exists on smarty using URL?

3 Answers3