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Bug #72839 is_numeric returns false for hex strings
Submitted: 2016-08-15 08:32 UTC Modified: 2016-08-15 10:58 UTC
From: Alexander dot Blum at gmail dot com Assigned:
Status: Not a bug Package: Unknown/Other Function
PHP Version: 7.1Git-2016-08-15 (Git) OS: Ubuntu 16.04
Private report: No CVE-ID: None
View Developer Edit
 [2016-08-15 08:32 UTC] Alexander dot Blum at gmail dot com 
Description:
------------
With PHP7 is_numeric reports false when passing hexadecimal strings, it worked fine in PHP5

Test script:
---------------
var_dump (is_numeric ("0x111"))

Expected result:
----------------
bool(true)


Actual result:
--------------
bool(false)

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 [2016-08-15 08:46 UTC] requinix@php.net
-Status: Open +Status: Not a bug
 [2016-08-15 08:46 UTC] requinix@php.net 
That's right.
http://php.net/manual/en/migration70.incompatible.php#migration70.incompatible.strings.hex
https://wiki.php.net/rfc/remove_hex_support_in_numeric_strings
 [2016-08-15 09:08 UTC] Alexander dot Blum at gmail dot com 
Well, then the documentation needs a bugfix: https://secure.php.net/manual/de/function.is-numeric.php
 [2016-08-15 10:42 UTC] requinix@php.net 
Translations affected: pt_BR, DE, KR, RU, ES, TR
FR, JA, RO are already fixed. ZH is not affected because it only says "if var is numeric then true otherwise false".

Since this affects multiple translations I'm going to make multiple bug reports for them.
 [2016-08-15 10:58 UTC] requinix@php.net 
...it occurs to me that all these new bugs will be about removing text, so even a non-speaker could fix them all. Oh well.
 
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