[RESOLVED] XML parsing question

Banacek

Hey guys, I have a question. Say I have a huge XML file that goes something like this:

<one>
<two>stuff</two>
<three>stuff</three>
<four>stuff</four>
<five>stuff</five>
</one>

So my question is, what is the best way to check to see if one of those is missing when I'm parsing the file? As in:

<one>
<two>stuff</two>
<three>stuff</three>
<five>stuff</five>
</one>

How do I check to see if four is there (I know the name of the element, so I wouldn't have to search for all of them) Thanks!

harmor

Try

$filename = "test.xml";
$handle = fopen($filename, "r");
$contents = fread($handle, filesize($filename));

$xml = new SimpleXMLElement($contents);

foreach ($xml->one as $one) 
{
	if(!$one->two)
	{
		die("The <two> tag is missing");
	}
	if(!$one->three)
	{
		die("The <three> tag is missing");
	}
	if(!$one->four)
	{
		die("The <four> tag is missing");
	}
	if(!$one->five)
	{
		die("The <five> tag is missing");
	}

}

Try this site site http://us2.php.net/simplexml

Banacek

harmor wrote:

Try

$filename = "test.xml";
$handle = fopen($filename, "r");
$contents = fread($handle, filesize($filename));

$xml = new SimpleXMLElement($contents);

foreach ($xml->one as $one) 
{
	if(!$one->two)
	{
		die("The <two> tag is missing");
	}
	if(!$one->three)
	{
		die("The <three> tag is missing");
	}
	if(!$one->four)
	{
		die("The <four> tag is missing");
	}
	if(!$one->five)
	{
		die("The <five> tag is missing");
	}

}

Try this site site http://us2.php.net/simplexml

I guess I oversimplified my XML. What if the layout is this:

<contents>
<one>
<two>stuff</two>
<three>stuff</three>
<four>stuff</four>
<five>stuff</five>
</one>
<one>
<two>stuff</two>
<three>stuff</three>
<four>stuff</four>
<five>stuff</five>
</one>
<one>
<two>stuff</two>
<three>stuff</three>
<five>stuff</five>
</one>
</contents>

and <four> is missing from the last one?

EDIT: Nevermind, I got it. My mind is moving slow this morning. I'm assuming that I can create the missing element going by that link you sent. Thanks for the help!

mjax

Are you trying to implement a validation for XML files using PHP? Your best bet would be to declare a DTD for the XML format and validate the XML against the DTD.