Question

I am developing an application where there are different users related to different domains.
In the admin panel i am adding a domain.
Now i need to display logo of each domain.
How can i dynamically display logo of any domain?
Is there any way that i input a domain name as a string and it returns domains information along with the image.
I know i can upload logos while adding a domain but i want it to do it with a simple helper function.
How can i achieve it.
Let suppose i need a function like this

$autoload['helper'] = array('domain_helper');

And to find domain

<img src = "<?php echo domain_image('https://www.google.com/'); ?>" >

Answer 1

Use curl to pull the favicon from the website and save it as a png.

http://php.net/manual/en/curl.examples-basic.php

<?php
$domain = "google.com";
$image_name = "favicon.ico";

touch("/var/www/domain_images/$domain.png");
$fp = fopen("/var/www/domain_images/$domain.png", "w");

$ch = curl_init("https://".$domain."/".$image_name);

curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);

curl_exec($ch);
curl_close($ch);
?>

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EDIT

A word of caution: if you are taking input from users to get the domain name, make sure you sanitize it before passing it along (as always)!