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Bug #8824

closed

is_numeric() on PHP 7 no longer validates hexadecimal values

Added by Jim Pingle over 6 years ago. Updated about 6 years ago.

Status:
Resolved
Priority:
High
Assignee:
Jim Pingle
Category:
Web Interface
Target version:
2.4.4
Start date:
08/22/2018
Due date:
% Done:

100%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
2.4.4
Affected Architecture:
All

Description

http://php.net/manual/en/function.is-numeric.php

7.0.0 Strings in hexadecimal (e.g. 0xf4c3b00c) notation are no longer regarded as numeric strings, i.e. is_numeric() returns FALSE now.

Best fix appears to be using http://php.net/manual/en/function.ctype-xdigit.php without prepending 0x to the string.

The only uses of this for hexadecimal that I can find is interfaces.php and handling of the track6 prefix ID, but worth checking for other instances.

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