How to highlight the right words in any application?

Question

PHP

Are there any applications for highlighting given words on the screen, regardless of the application in which they occur?
I met a program for copying text or contextual translation from any application, so I thought - maybe there is one too.

Answer 1

Perhaps the site looks for the presence of certain HTTP headers, for example, for a non-empty user-agent or some other headers.
To set them, curl is not necessarily needed (but I recommend it), you can do this for file_get_contents as well.
Example below is setting Accept-language and User-Agent

$options = array(
  'http'=>array(
    'method'=>"GET",
    'header'=>"Accept-Language: en-US,en;q=0.9,ru;q=0.8\r\n".
"User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.50 Safari/537.36 OPR/65.0.3467.16 (Edition beta)\r\n"
  )
);

$context = stream_context_create($options);
$String = file_get_contents($url, false, $context);

Answer 2

Turn on error output and see what happens there.

error_reporting(E_ALL);
ini_set('display_startup_errors', 1);
ini_set('display_errors', '1');

https://www.php.net/manual/ru/function.error-report...

Answer 3

Because cUrl needs to be used.
It's strange that you

... with one specific site, this does not roll out ...

It should be the other way around.