Writing XML with PHP - using DOM

Question

3.00/5 (2 votes)

See more:

Many sorry for posting such a basic question, but honestly I found a lot about reading, but not much about specific writing.

I have a xml file that looks like this:

XML

<?xml version="1.0" encoding="ISO-8859-1"?> <tabuleiro> <linha>  <coluna1>3</coluna1> <coluna2>3</coluna2> <coluna3>3</coluna3> <coluna4>3</coluna4> <coluna5>3</coluna5> <coluna6>3</coluna6> <coluna7>3</coluna7> </linha> <linha>  <coluna1>0</coluna1> <coluna2>0</coluna2> <coluna3>0</coluna3> <coluna4>0</coluna4> <coluna5>0</coluna5> <coluna6>0</coluna6> <coluna7>0</coluna7> </linha> <linha> <coluna1>0</coluna1> <coluna2>0</coluna2> <coluna3>0</coluna3> <coluna4>0</coluna4> <coluna5>0</coluna5> <coluna6>0</coluna6> <coluna7>0</coluna7> </linha> <linha>

...............

Let's say I want to update the coluna2 element from the second 'linha'. I believe it's something like this:

PHP

$doc = new DOMDocument(); $doc->load('tabuleiro.xml'); $cols = $path->query("linha"); foreach($cols as $col) { if ... } $dom->save('tabuleiro.xml');

But I dont know what to put on that if clause (already tried some options but none of them working).

Can you help me ?

Posted 6-Mar-11 11:33am

Maxdd 7

Updated 6-Mar-11 13:17pm

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Albin Abel · Accepted Answer · 2011-03-06T19:32:00

Solution 1

It is very simple for your XML file. Convert the XML to a simple hierarchial object. Set the values and save it back as XML.

PHP

$sxe = new SimpleXMLElement('test.xml', NULL, TRUE);
$linha=$sxe->linha;
$linha[2]->coluna2=30;
file_put_contents('test.xml', $sxe->asXML());

Where $linha[2] refer to second linha

Posted 6-Mar-11 19:32pm

Albin Abel

Comments

Maxdd 7 7-Mar-11 10:19am

Excelent answer! Thank you very much.

Just for curious, how could use the same using DOM ?