fwrite() to specific areas of XML document?

DJ_Polymorph

evenin' all,

I'm using

<?
$datafile = "./datafile.xml";
//
if (!($fp = fopen($datafile, "a"))) {
die ("whoops! no file found");
}
//
$data_string = "<item>
		<![CDATA[some more data I'd like to store in XML after the last child node but before the </root_node> terminus]]>
	            </item>";
//
fwrite($fp, $data_string);
fclose($fp);
//
?>

to pass a variable and write it into my XML document, which looks something like this

<?xml version="1.0"?>
<root_node id="root">
	<item no_parse_html="1">
		<item>
			<![CDATA[some data I'd like to store in XML]]>
		</item>
</root_node>

As you well know, XML has to be in a certain structure, and my PHP writes the string after the whole XML data, and that's no good.

How can I specify that the data must be written to the part before </root_node> but after the last child node <item>? I assume it's something simple that counts characters (in this case 12) backwards from the XML and appends the data to that section, I just can't fathom what it is, or if it's even a correct assumption?

Cheers

DJ_Polymorph

BUMP

xblue

please don't say bump to us, most people dislike that - write something more informative instead, e.g. what you tried to solve the problem since or even what you had for dinner 😉

okay, no way to write to a specific line or postion in a string as far as I know, so you would have to read the complete file into a variable, identify the position you want to write to, modify the variable accordingly, and then overwrite the file with the modified content.

does this make sense to you?

DJ_Polymorph

Hi xblue - thanks for the reply,

Your post makes perfect sense, just that's not what I wanted to do really - seems wasteful in the sense that I'd have to load in say 20 nodes just to add another, but if that's the way then so be it. I guess it's not such a big deal really, I'm just an efficiency monster.

Apologies for the bump too!

slaps self 😃