pictures from XML file.

[Bob Bedford]

I've been able to parse the XML files used to update my database.

Now, I receive image in XML files, like this:

<PICTURES COUNT="3" CDATA="1">
<PIC NR="1"><![CDATA[/9j/4AAQSkZJ.....=]]></PIC>
<PIC NR="2"><![CDATA[/9j/4AAQSk......... ....></PIC>
<PIC NR="3"><![CDATA[/9j/4AAQSk......... ....></PIC>
</PICTURES>

How to save those 3 images in 3 jpg files ???

Thanks

Bob

[Janwillem Borleffs]

Re: pictures from XML file.

Bob Bedford wrote:[color=blue]
> I've been able to parse the XML files used to update my database.
>
> Now, I receive image in XML files, like this:
>
> <PICTURES COUNT="3" CDATA="1">
> <PIC NR="1"><![CDATA[/9j/4AAQSkZJ.....=]]></PIC>
> <PIC NR="2"><![CDATA[/9j/4AAQSk......... ....></PIC>
> <PIC NR="3"><![CDATA[/9j/4AAQSk......... ....></PIC>
> </PICTURES>
>
> How to save those 3 images in 3 jpg files ???
>[/color]

You said that you are able to parse the XML files, so I'm not going to
suggest how to do this.

There are someways to write the data to a file, one of the most simple ones
is with:

http://www.php.net/file_puts_contents

This function is binary-safe. Before file creation, you should decode the
data when it's encoded. When the data isn't encoded, I advise you to encode
it before addition to the XML file. Otherwise, some binary data can get
lost.

A common way of encoding is base64, for which you can apply base64_decode()
to decode the data and base64_encode() for encoding.


JW

[Andy Hassall]

Re: pictures from XML file.

On Wed, 15 Sep 2004 22:28:45 +0200, "Bob Bedford"
<bedford1@YouKn owWhatToDoHereh otmail.com> wrote:
[color=blue]
>I've been able to parse the XML files used to update my database.
>
>Now, I receive image in XML files, like this:
>
><PICTURES COUNT="3" CDATA="1">
><PIC NR="1"><![CDATA[/9j/4AAQSkZJ.....=]]></PIC>
><PIC NR="2"><![CDATA[/9j/4AAQSk......... ....></PIC>
><PIC NR="3"><![CDATA[/9j/4AAQSk......... ....></PIC>
></PICTURES>
>
>How to save those 3 images in 3 jpg files ???[/color]

Since you've said you've got the parsing sorted, that must just leave decoding
and saving.

Looks like it's base64 encoded, so:

http://uk.php.net/manual/en/function.base64-decode.php

http://uk.php.net/manual/en/function.fopen.php

http://uk.php.net/manual/en/function.fwrite.php

http://uk.php.net/manual/en/function.fclose.php

--
Andy Hassall / <andy@andyh.co. uk> / <http://www.andyh.co.uk >
<http://www.andyhsoftwa re.co.uk/space> Space: disk usage analysis tool

[Bob Bedford]

Re: pictures from XML file.

> Since you've said you've got the parsing sorted, that must just leave
decoding[color=blue]
> and saving.
>
> Looks like it's base64 encoded, so:[/color]

Here is the code, but probably the problem is somewhere else:
if(isset($datas["PICTURES"])){
while(list($k,$ v) = each($datas["PICTURES"])){
if(is_array($da tas["PICTURES"][$k])){
while(list($k1, $v1) = each($datas["PICTURES"][$k])){
echo($k1."->".$v1."<br>" );
if($k1 == 'PIC'){
echo(base64_dec ode($v1)."<br>< br>"); //print to screen
if($imgfile =
fopen($UserID.'-'.$datas["NUM"].'-'.$num.'.jpg',' wb')){
fwrite($imgfile ,base64_decode( $v1));
fflush($imgfile );
fclose($imgfile );
}
else
echo('error creating output file');
}else
$num = $v1;
}
}
}
}

Parsing: got the code on php.net:
while ($data = fread($fp, 4096)) {
if (!xml_parse($xm l_parser, $data, feof($fp))) {
die(sprintf("XM L error: %s at line %d",
xml_error_strin g(xml_get_error _code($xml_pars er)),
xml_get_current _line_number($x ml_parser)));
rename($XMLPath .$file, $XMLPath.$failp ath.$file); //move file in error
path
}
}

the XML structure
<PICTURES COUNT="3">
<PIC NR="1"><![CDATA[/9j/4AAQSkZJRg..... ..........

if I try to print on the screen with "echo(base64_de code($v1)."<br> <br>");"
I get line of different size and the created files are 1ko ! They should be
bigger ! Any idea ??? any string limit, a problem in the parser ???

Cheers

Bob

[Alvaro G. Vicario]

Re: pictures from XML file.

*** Bob Bedford escribió/wrote (Thu, 16 Sep 2004 00:00:19 +0200):[color=blue]
> while ($data = fread($fp, 4096)) {[/color]

Note that fread() uses a 4096 bytes buffer. That means that an image will
probably be split in more than one while() looping. Just make sure your XML
parser takes this case into account.


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