[php-src] Issue #11098: filter_var FILTER_VALIDATE_IP with ip '0.2.3.4' will return true

Issue: https://github.com/php/php-src/issues/11098 Author: joe820912boy ### Description The following code: ```php <?php $ip = '0.2.3.4'; // replace with the IP address you want to validate if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) { echo "$ip is a valid IP address"; } else { echo "$ip is not a valid IP address"; } ``` Resulted in this output: ``` 0.2.3.4 is a valid IP address ``` But I expected this output instead: ``` not a valid IP address ``` I check this code on https://onlinephp.io/c/b1510 I think that '0.2.3.4' shouldn't be a valid ip address with 0 in the head. But the filter_var will return true for this error ip ### PHP Version 8.2.5 ### Operating System _No response_