Case sesitivity in XML Tags and simplexml_load_file()

[Rainer Mohr]

Hi,

I´m having some problems with simplexml_load_file() and cant find any
sollution anywhere.

Say, we have the following file:
---file.xml---
<UNITS>Metric</UNITS>
<UNITS>another</UNITS>
--------------

The following code:
-------------------
$file = "file.xml";
$xml = simplexml_load_file($file) or die ("cant read file!");
echo $xml->UNITS[0];
-------------------

Gives me back "Metric", which it should do.

Now assume someone else uploads the following file:

---file.xml---
<units>Metric</units>
<units>another</units>
--------------

The output is empty, because of the case-sensitivity.

I cant influence how the user upload the files (upper or lower case in
the tags), how can i solve this problem?

I found xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true )
but it wont affect simplexml_load_file.

Any suggestions?

Thanks,
Rainer

[Malcolm Dew-Jones]

Rainer Mohr (ra*********@wiwi.uni-regensburg.de) wrote:
: Hi,

: I´m having some problems with simplexml_load_file() and cant find any
: sollution anywhere.

: Say, we have the following file:
: ---file.xml---
: <UNITS>Metric</UNITS>
: <UNITS>another</UNITS>
: --------------

: The following code:
: -------------------
: $file = "file.xml";
: $xml = simplexml_load_file($file) or die ("cant read file!");
: echo $xml->UNITS[0];
: -------------------

: Gives me back "Metric", which it should do.

: Now assume someone else uploads the following file:

: ---file.xml---
: <units>Metric</units>
: <units>another</units>
: --------------

: The output is empty, because of the case-sensitivity.

: I cant influence how the user upload the files (upper or lower case in
: the tags), how can i solve this problem?

Why not? The user needs to use the correct format for the data, and XML
is quite definitively case sensitive.

Define a DTD or schema and require the user to send data that is valid
according to that.
: I found xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true )
: but it wont affect simplexml_load_file.

The XML_OPTION_CASE_FOLDING is a kludge to help with handling things like
html, it should always be turned off for any regular xml parsing.
--

This space not for rent.

[Rainer Mohr]

Hi Malcolm

Malcolm Dew-Jones wrote:

Why not? The user needs to use the correct format for the data, and XML
is quite definitively case sensitive.
I Know, but I cant influence what the users upload. Their xml data is
created by different softwares and they dont even know what is in the
files. They cant influence what the softwares do anyway.
: I found xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true )
: but it wont affect simplexml_load_file.

The XML_OPTION_CASE_FOLDING is a kludge to help with handling things like
html, it should always be turned off for any regular xml parsing.

The data in the XML files is tranferred to a mysql database and then
deleted. So I dont need the file afterwards. It would just be nice to be
able to get the data into the database without asking the user to clean
it up (for they wont).

Therefore, can i influece simplexml_load_file with the
XML_OPTION_CASE_FOLDING in any way? If yes, then how?

Thanks again,
Rainer

[Oli Filth]

Rainer Mohr said the following on 10/06/2005 19:30:

Hi Malcolm

Malcolm Dew-Jones wrote:

Why not? The user needs to use the correct format for the data, and XML
is quite definitively case sensitive.

I Know, but I cant influence what the users upload. Their xml data is
created by different softwares and they dont even know what is in the
files. They cant influence what the softwares do anyway.

Yes, but then that's their problem, not yours. If they upload invalid
XML, then that's their fault.

XML is supposed to be case-sensitive. If their software thinks
otherwise, then their software is wrong.

If you still want to work around this, then either use the event-driven
XML functions which allow you to ignore case, or build your own XML
parser (which isn't actually that hard).
--
Oli