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References: <BANLkTikFgkmuQP1kLfCefAXxgGizn9BxZw@mail.gmail.com>
	<alpine.DEB.2.02.1106201218200.3774@whisky>
Date: Mon, 20 Jun 2011 13:32:30 +0200
Message-ID: <BANLkTikcKYb7LKTf+RGsZE=BGQ-24O4AwQ@mail.gmail.com>
To: Derick Rethans <derick@php.net>
Cc: internals@lists.php.net
Content-Type: multipart/alternative; boundary=0016e646a3c232d4fe04a6231747
Subject: Re: [PHP-DEV] Changed behaviour for strtr()
From: robert@xarg.org (Robert Eisele)

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2011/6/20 Derick Rethans <derick@php.net>

> On Mon, 20 Jun 2011, Robert Eisele wrote:
>
> > Here is the next one.
> >
> > I think it's quite intuitive to use strtr() to remove single characters
> of a
> > string, too, instead of using many str_replace($str, $chr, ""). I'd glad
> to
> > see this change also in 5.4.
>
> Do you mean that (the currently documented):
>
> "If from and to have different lengths, the extra characters in the
> longer of the two are ignored. The length of str will be the same as the
> return value's."
>
> would then change into:
>
> "If from and to have different lengths, the extra characters in the
> longer of the two are assumed to be the empty string, thus
> removing those characters. The length of str will be the same as
> the return value's unless the from and to have a different length."
>
> This could be one possible implementation. My implementation doesn't
change the old behaviour of strtr(). I simply used the length of the
"smaller"
value to indicate what mode should get used; if the length is zero, all
characters get removed like this:

$demise = strtr("passion", "os", "");

which results in "pain"


> cheers,
> Derick
>

Robert

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