Php sprintf('%u', $x) - explanation
Hello experts.
I'm using coldfusion server language and need help to understand this function:
// IP ADDRESSES ARE UNSIGNED AND MAY RETURN NEGATIVE VALUES
$ip_number = sprintf('%u', $x);
(4 step - second code - line 39 here: https://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/PHP_Databases/A_3437-IP-Address-to-Country-in-PHP.html)
Any help?
I'm using coldfusion server language and need help to understand this function:
// IP ADDRESSES ARE UNSIGNED AND MAY RETURN NEGATIVE VALUES
$ip_number = sprintf('%u', $x);
(4 step - second code - line 39 here: https://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/PHP_Databases/A_3437-IP-Address-to-Country-in-PHP.html)
Any help?
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regards
panos