Cannot Grab

[Rei444]

Domain:
https://www.ionos.de

Put the Domain in TestArray ...

$testURLs = array(
   'https://aws.amazon.com',
   'https://www.ionos.de',
   'https://www.commerzbank.de',
   'https://www.apple.com',
 );

Start with:

php get-fav.php --user-agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36 "
Console-Output:

PHP Warning: Undefined global variable $curl_timeout in /var/www/vhosts/---/httpdocs/get-fav.php on line 572
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/---/httpdocs/get-fav.php on line 512
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/---/httpdocs/get-fav.php on line 512
PHP Warning: Undefined global variable $curl_timeout in /var/www/vhosts/---/httpdocs/get-fav.php on line 572
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/---/httpdocs/get-fav.php on line 512
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/---/httpdocs/get-fav.php on line 512
PHP Warning: Undefined variable $filePath in /var/www/vhosts/---/httpdocs/get-fav.php on line 484
PHP Warning: Undefined global variable $curl_timeout in /var/www/vhosts/---/httpdocs/get-fav.php on line 572
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/d---/httpdocs/get-fav.php on line 512
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/---/httpdocs/get-fav.php on line 512
PHP Warning: Undefined global variable $curl_timeout in /var/www/vhosts/---/httpdocs/get-fav.php on line 572
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/---/httpdocs/get-fav.php on line 512
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/---/httpdocs/get-fav.php on line 512
Icon: ./aws.amazon.com.ico
Icon: ./commerzbank.de.ico
Icon: ./apple.com.ico

Runtime: 2.71 Sec.

[LeeThompson]

What version of PHP?
Looks like that's running on a web server too, Apache? (Just asking so I can try to repro it).
Are you running it from a command line or via the web server?
You have a space at the end of the user agent string, I'm not sure that will cause an issue but it might.

(This makes me think we should add a --support option to dump some support info.)
(Just a note, my current build (202306161401) is able to get the icon without any problems. My user agent was set to Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/113.0)