Help using simplexml

michaelespinosa

07-24-2008, 05:38 PM

I am using simplexml to load a file:

$xml = simplexml_load_file('http://www.blogger.com/feeds/6386500013791780626/posts/default?max-results=1');

I want to access the certian elements of the xml. For example if I wanted to assign the value of the title element to a title variable:

$title = $xml->title

This doesn't seem to work for me. Am I doing something wrong. Thanks for the help.

oesxyl

07-24-2008, 05:50 PM

- check if $xml is not false
- check if you have a title node in the document

the simplest way to find xml structure is to print_r or var_dump different part of $xml.

regards

michaelespinosa

07-24-2008, 06:27 PM

I made sure $xml is not false and there is a title element. the path is:

$xml->entry->title

Are you allowed to chain like that? Because it's not working for me when I do:

print "<h3>$xml->entry->title</h3>";

oesxyl

07-24-2008, 06:50 PM

there are multiple entry so you must say which one you want:

print "<h3>$xml->entry[0]->title</h3>";

a link with some examples, if you don't already have:

http://www.php.net/manual/en/simplexml.examples.php

regards

oesxyl

07-24-2008, 06:55 PM

I test what I post and fail, try this way:

print "<h3>".$xml->entry[0]->title."</h3>";

this work.

regards

michaelespinosa

07-24-2008, 10:57 PM

I changed my code up to use SimpleXMLElement instead of simplexml_load_file. I am able to access the "id" node but not the "title" or "author->name". I just can't understand how to access the nodes I wan't. Check out what I have and then you can see the result here (http://www.rockchurchfamily.com/test/rss.php).

$source = ('http://www.blogger.com/feeds/6386500013791780626/posts/default?max-results=1');

$xmlstr = file_get_contents($source);

$xml = new SimpleXMLElement($xmlstr);

print "<h3>$xml->id</h3>";
print "<p>$xml->entry->content</p>";
print "<h2>$xml->author->name</h2>";

print_r ($xml);

oesxyl: Thanks for your last post, that worked well. I am trying it another way. Also why did you have to put quotes around the html elements print "<h3>".$xml->entry[0]->title."</h3>"; to get it to work and mine print "<h3>$xml->id</h3>"; worked for this one.?

oesxyl

07-24-2008, 11:09 PM

did you read previous posts?

try this:
$xml = simplexml_load_file('http://www.blogger.com/feeds/6386500013791780626/posts/default?max-results=1');

print "<h3>".$xml->id . "</h3>";
print "<p>" . $xml->entry[0]->content . "</p>";
print "<h2>" . $xml->author->name . "</h2>";

regards

oesxyl

07-24-2008, 11:14 PM

oesxyl: Thanks for your last post, that worked well. I am trying it another way. Also why did you have to put quotes around the html elements print "<h3>".$xml->entry[0]->title."</h3>"; to get it to work and mine print "<h3>$xml->id</h3>"; worked for this one.?
php don't know where the variable is ended. I make this mistake in #4, :)

regards

michaelespinosa

07-24-2008, 11:23 PM

oesxyl: Thanks, that what I thought it might be.

michaelespinosa

07-29-2008, 12:53 AM

oesxyl

07-29-2008, 01:19 AM

try this:

print $xml->entry->link[1]['title'];

because 'title' is key in aray link[1]

[link] => Array (
[1] => SimpleXMLElement Object (
[@attributes] => Array (
[rel] => replies
[type] => text/html
[href] => http://www.blogger.com/comment.g?blogID=6386500013791780626&postID=9111396441055026164

[title] => 0 Comments ) ) <<<<<<<<<<<<<<

regards

michaelespinosa

07-29-2008, 06:03 AM

Thanks oesxyl, that worked. I am having trouble finding examples and documentation on this. Do you have any links about this. Thanks again.

oesxyl

07-29-2008, 01:21 PM

Thanks oesxyl, that worked. I am having trouble finding examples and documentation on this. Do you have any links about this. Thanks again.

this is what I use for simplexml( documentation):
http://www.php.net/manual/en/book.simplexml.php

for examples, I post in one of my previous thread, this:
http://www.php.net/manual/en/simplexml.examples.php

I don't really use simplexml, I use DOM instead, therefor I don't know if there is some better documentation/examples then that, :)

regards