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Bug #76212 Filter var URL with underscore in hostname
Submitted: 2018-04-12 08:29 UTC Modified: 2018-04-12 09:15 UTC
Votes:1
Avg. Score:3.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: dimitri at sponsorboost dot com Assigned:
Status: Not a bug Package: Filter related
PHP Version: 7.0.29 OS: Windows (XAMPP)
Private report: No CVE-ID: None
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 [2018-04-12 08:29 UTC] 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

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 [2018-04-12 08:44 UTC] sjon at hortensius dot net 
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.
 [2018-04-12 08:48 UTC] spam2 at rhsoft dot net 
just don't do that - countless developer hours are wasted in the past years because of such hostnames and then finally test in different browsers and find out after hhours that MSIE don't like cookies for hostnames which must not exist
 [2018-04-12 09:15 UTC] requinix@php.net
-Status: Open +Status: Not a bug
 [2018-04-12 09:15 UTC] requinix@php.net 
As commented.
 
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