Re: [RFC] Binary String Comparison

From: Date: Mon, 18 Aug 2014 09:57:53 +0000
Subject: Re: [RFC] Binary String Comparison
References: 1  Groups: php.internals 
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On Sun, Aug 17, 2014 at 9:58 PM, Marc Bennewitz <php@mabe.berlin> wrote: > Hi internals! > > I've created a draft RFC and patch to change the behavior of non-strict > string to string comparison to be binary safe (as the strict comparison > operator does): > > https://wiki.php.net/rfc/binary_string_comparison > > On comparing two numeric strings both operands will be equal if the string > representation will be the same. On comparing two numeric strings the first > operand will be greater if the first not matching byte will be higher. On > comparing two numeric strings the first operand will be lower if the first > not matching byte will be lower. > > As a side effect it makes string comparison much faster and force developer > to really write what they mean (No need to guess) and to force developers to > cast/filter input once which also affects performance. > > On C-Level the function zendi_smart_strcmp will be unused and marked as > deprecated. > > Thanks, > Marc This seems to me as a major breakage, not necessary, as strict comparison (===) or strcmp() are available. Julien Pauli

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