Bug #76212 [Com]: Filter var URL with underscore in hostname

Edit report at https://bugs.php.net/bug.php?id=76212&edit=1 ID: 76212 Comment by: sjon at hortensius dot net Reported by: dimitri at sponsorboost dot com Summary: Filter var URL with underscore in hostname Status: Open Type: Bug Package: Filter related Operating System: Windows (XAMPP) PHP Version: 7.0.29 Block user comment: N Private report: N New Comment: I think this explains it pretty good: https://stackoverflow.com/a/2183140/3749523 > for host names (or for URLs, which include a host name), [..] this is different, the relevant > standard is RFC 1123, section 2.1 "Host Names and Numbers" which limits host names to > letters-digits-hyphen. Previous Comments: ------------------------------------------------------------------------ [2018-04-12 08:29:11] dimitri at sponsorboost dot com Description: ------------ Hostname can't contain underscore '_'. I find RFC norme : this https://tools.ietf.org/html/rfc3986#section-2.3 Test script: --------------- var_dump(filter_var('http://testscript.com',FILTER_VALIDATE_URL)); var_dump(filter_var('http://test_script.com',FILTER_VALIDATE_URL)); Expected result: ---------------- string 'http://testscript.com' string 'http://test_script.com' Actual result: -------------- string 'http://testscript.com' boolean false ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76212&edit=1