If you want to retrieve the contents of a url, you can use the file_get_contents() function. The implementation would look something like this:

$url = 'http://example.com/weight';
$weight = file_get_contents($url);
echo $weight;

Also, you might want to use a function like floatval() to convert your result to a float.
Read more about file_get_contents() here: https://www.w3schools.com/php/func_filesystem_file_get_contents.asp

I have access to a URL that if i simply put http://example.com/weight into address bar it returns a float number…

Ex: 17.23kg

Image for better understanding:

My objective is to use PHP for assigning this float value into a variable.
$weight = float value…

Here is the code i did with hopes that it would work:

$url = 'http://example.com/weight';
$url_components = parse_url($url);
parse_str($url_components['weight'], $params);
$weight = $params['weight'];
echo $weight;

But this returned nothing…

What am i doing wrong?

I have access to a URL that if i simply put http://example.com/weight into address bar it returns a float number…

Ex: 17.23kg

Image for better understanding:

My objective is to use PHP for assigning this float value into a variable.
$weight = float value…

Here is the code i did with hopes that it would work:

$url = 'http://example.com/weight';
$url_components = parse_url($url);
parse_str($url_components['weight'], $params);
$weight = $params['weight'];
echo $weight;

But this returned nothing…

What am i doing wrong?