Re: utf-8-safe replacement for strtr()?

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On Tue, 24 Mar 2009 08:15:35 -0400, Tom Worster wrote:

> On 3/23/09 2:02 PM, "Tom Worster" <fsb@xxxxxxxxxx> wrote:
> 
>> i havea general replacement or workaround for every php function in my code
>> that i know to be utf-8-unsafe. except one: strtr().
> 
> strtr() with three parameters is certainly unsafe. but my tests are showing
> that it may be ok with two parameters if the strings in the second parameter
> are well formed utf-8.
> 
> does anyone know more? can confirm or contradict?

The two-argument version of strtr() should work fine
since there are no collisions in utf-8 such that part
of one character matches part of a different character.

The question is whether the function is binary safe.
The manual page doesn't say as far as I can tell.
Google came up with the following:

strtr() made binary safe in PHP3:
  <http://marc.info/?l=php-general&m=92740681805351&w=4>

Two-argument version added in PHP4:
  <http://php.net/ChangeLog-4.php>


/Nisse

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