Hi with an xml files like this(pay attention to words with accent
?-?-?-?-?-?)

<?xml version="1.0"?>
<FOO>
   <NAME>il mio nome ? mai pi?</NAME>
</FOO>

and with a xsl file like
<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template match="FOO">
   <xsl:value-of select="NAME">
</xsl:template>
</xsl:stylesheet>

using xslt_process(..) to trasform some error occur. While if we delete
these accents (??????) it's all ok.

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"some error occur"???
http://bugs.php.net/how-to-report.php
http://www.tuxedo.org/~esr/faqs/smart-questions.html

yes, apologize me for short description i made..

so when we transform with sablotron the transformation fail SURELY with chars ? (not ?) and ?. While with the other accents (?-?-?-?) rendering is not exact:

\n -> carriage return
infact the expression "?\n" became "???", then "?\n" became "͊", "?\n" became "荊".
I don't know how sablotron works but it seem that it doesnt support all characters or combination of that

I though was my xsl to fail but it'isnt because i try to make the transformation simply applyng the xml-stylesheet to file xml and the transformation occur without problems each letter is transformed correctly.

Please contact me for more description, for me is very important to resolve this problem.
(ICQ : 69001294
MSN: diego.zecchini@lib.unimib.it

xml default encoding is Unicode UTF-8

if you want to use european ISO 8859-1 
cahracter codes you have to say so:

<?xml version='1.0' encoding='iso-8859-1'>

if you don't then behaviour on non-ascii characters
is undefined, so it may work but you can't complain 
if it doesn't

thank a lot for your availability.  
I do as you say.
I used the european encoding iso-8859-1
now the PI of my xml file is
<?xml version='1.0' encoding='iso-8859-1'>

but it doesn't works.
the function it generate the error is dump_mem that when called with arguments TRUE and iso-8859-1 ( dump_mem(TRUE, 'iso-8859-1') ) return the errors:

[error] PHP Warning:  output conversion failed due to conv error
[error] PHP Warning:  Bytes: 0xE0 0x20 0x64 0x6F
[error] PHP Warning:  xmlOutputBufferWrite: encoder error

in particular the char that generate the error is "?".

You might want to try adding this line to your XSL stylesheet:
  <xsl:output method="xml" encoding="ISO-8859-1" />

This should force the xslt engine to output characters only in latin-1.

I really can't reproduce this (even after fixing the xml PI with the necessary ?> end).
I've tested this with 2 independant, FreeBSD 4.7-STABLE machines, upgraded today.
If you are still facing this error, please package all related files in a tar.gz and make it available for download or send me via mail.


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