I have
this xml file
and i'm trying to access to the value of attribute permission in the tag yt:accessControl in php
echo (string)$xmlyt->entry->children('yt')->{'accessControl'}->attributes()->$actionAttr."------------";
but i have the error
Node no longer exists
Understanding how SimpleXML works and XML generally is greatly beneficial to doing this...
You can discover things through trial and error and end up with something like this:
$sxml=simplexml_load_file('http://gdata.youtube.com/feeds/api/videos/'.$videoID.'?v=2');
$yt = $sxml->children('http://gdata.youtube.com/schemas/2007');
print_r($yt->accessControl->attributes());
print_r($yt->accessControl[4]->attributes());
For instance, this will give you permissions for the first and fifth actions, which happen to be comment and embed ATM (should probably loop through all to identify the ones you're interested instead of relying on the order).
Hope this helps,
aL
Related
I've been developing a XML based PHP application which has suddenly "lost" all XML capabilities.
It just gives non-object errors on all DOMDocument/XML functions such as item, replaceChild, removeChild etc. generate non-object errors. Didn't happen yesterday and I haven't changed anything in code.
There's also errors like Failed to parse QName, error parsing attribute name in Entity etc. while XML data is still the same as for the last few months so no changes there.
Seems like DOMDocument "library" is completely unavailable while PHPinfo states that all required modules etc are enabled.
EDIT:
Now it seems like SimpleXML function asXML() is adding a new element to the document:
<ns:#attributes/>
Thanks for the reply.
In the end it was far from the actual XML or XML code.
I had a != comparator instead of !== which made it act like this. So next time I compare some variable to false value I'll probably remember that I should use !==.
Small things make big difference.
I have two lines of XML data that are attributes but also contain data inside then and they are repeating fields. They are being stored in a SimpleXML variable.
<inputField Type="Name">John Doe</inputField>
<inputField Type="DateOfHire">Tomorrow</inputField>
(Clearly this isnt real data but the syntax is actually in my data and I'm just using string data in them)
Everything that I've seen says to access the data like this, ,which I have tried and it worked perfectly. But my data is dynamic so the data isn't always going to be in the same place, so it doesn't fit my needs.
$xmlFile->inputField[0];
$xmlFile->inputField[1];
This works fine until one of the lines is missing, and I can have anywhere from 0 to 5 lines. So what I was wondering was is there any way that I can access the data by attribute name? So potentially like this.
$xmlFile->inputField['Name'];
or
$xmlFile->inputField->Name;
I use these as examples strictly to illustrate what I'm trying to do, I am aware that neither of the above lines of code are syntactically correct.
Just a note this information is being generated externally so I cannot change the format.
If anyone needs clarification feel free to let me know and would be happy to elaborate.
Maybe like this?
echo $xmlFile->inputField->attributest()->Name;
And what you're using? DOMDocument or simplexml?
You don't say, but I assume you're using SimpleXMLElement?
If you want to access every item, just iterate:
foreach ($xmlFile->inputField as $inputField) { ... }
If you want to access an attribute use array notation:
$inputField['Type']
If you want to access only one specific element, use xpath:
$xmlFile->xpath('inputField[#Type="Name"]');
Perhaps you should read through the basic examples of usage in the SimpleXMLElement documentation?
For example you can a grab a data:
$xmlFile = simplexml_load_file($file);
foreach($xmlFile->inputField as $res) {
echo $res["Name"];
}
Ok, I am working on a flatfile shoutbox, and I am trying to achieve a way to get the username from the flatfile and making it a variable so I can use it to make a call to the database to check if the user is admin so they can delete/ban users directly from the shoutbox.
This is an example line in the flatfile
<div><i><div class='date'>12/08/2012 18:56 pm </div></i> <div class='groupAdmin'><b>Admin</b></div><b>kira423:</b> hiya :D</div>
So I wanna take the username which is kira423 in this case and create a variable such as $shoutname and make it equal kira423
I have tried a google search and looked around on here, but was unable to find an answer, so I am hoping that I can get some insight on how to do this with a question of my own here.
Thanks,
Kira
You should use preg_match for those tasks like this:
preg_match_all('|<div class=\'date\'>(?P<date>.*?) .*<a.*>(?P<user>.*)</a>|i', $data, $matches);
var_dump($matches);
Interating through all array elements:
foreach ($matches['user'] as $key => $user) {
var_dump($user);
}
I think you should just parse each line in the flatfile as HTML (there are simple HTML tags used), just like described in PHP Parse HTML code (or type "php parse HTML" in google). Then you may access the username (kira123) from an array or whatever.
PS HTML is not the best way you can store messages to display. Even CSV seems to be better - it'd be "kira123;date;some text" - it's easier to read and to access each part. When displaying, use the standar decorator pattern.
Apologies if there is an obvious answer (and I know there are about 1000 of these similar questions) - but I have spent two days trying to attack this without success. I cannot seem to crack why I get a null response...
Short background: the following works just fine
$xurl= new SimpleXMLElement('https://gptxsw.appspot.com/view/submissionList?formId=GP_v7&numEntries=1', NULL, TRUE);
$keyname = $xurl->idList->id[0];
echo $keyname;
this provides a response: a unique key like uuid:d0721391-6953-4d0b-b981-26e38f05d2e5
however I try a similar request (which ultimately would be based on first request) and get a failure. I've simplified code as follows...
$xdurl= new SimpleXMLElement('https://gptxsw.appspot.com/view/downloadSubmission?formId=GP_v7[#version=null%20and%20#uiVersion=null]/GP_v7[#key=uuid:d0721391-6953-4d0b-b981-26e38f05d2e5]', NULL, TRUE);
$keyname2 = $xdurl->data->GP_v7->SDD_ID_N[0];
echo $keyname2;
this provides null. And if I try something like
echo $xdurl->asXML();
I get an error response from the site (not from PHP).
Do I need to eject from SimpleXMLElement for the second request? I've read about using XPath and about defining the namespace, but I'm not sure that either would be required: the second file does have two namespaces but one of them isn't used and the other has no prefix for elements. Plus I have tried variations of those - enough to think that my problem/error is either more global in nature (or oversight due to inexperience).
For purposes of this request I have no control over the formatting of either XML file.
Here we go: SimpleXMLElement seems to re-escape (or incorrectly handle in some way) already url-escaped characters like white spaces. Try:
$xdurl= new SimpleXMLElement('https://gptxsw.appspot.com/view/downloadSubmission?formId=GP_v7[#version=null and #uiVersion=null]/GP_v7[#key=uuid:d0721391-6953-4d0b-b981-26e38f05d2e5]', NULL, TRUE);
$keyname2 = $xdurl->data->GP_v7->SDD_ID_N[0];
echo $keyname2;
and you should be fine.
(FYI: I debugged this by manually creating a local copy of the XML request result named "foo.xml" which worked perfectly.)
Thanks to #Matze for getting me on right track.
Issue is that URL has special characters that SimpleXMLElement cannot parse without help.
Solution: add urlencode() command like the following
$fixurl = urlencode('https://gptxsw.appspot.com/view/downloadSubmission?formId=GP_v7[#version=null and #uiVersion=null]/GP_v7[#key=uuid:d0721391-6953-4d0b-b981-26e38f05d2e5]');
$xdurl= new SimpleXMLElement($fixurl, NULL, TRUE);
$keyname2 = $xdurl->data->GP_v7->SDD_ID_N[0];
echo $keyname2;
this provided the answer (in this case 958)
I'm currently using this code:
$blog= file_get_contents("http://powback.tumblr.com/post/" . $post);
echo $blog;
And it works. But tumblr has added a script that activates each time you enter a password-field. So my question is:
Can i remove certain parts with file_get_contents? Or just remove everything above the <html> tag? could i possibly kill a whole div so it wont load at all? And if so; how?
edit:
I managed to do it the simple way. By skipping 766 characters. The script now work as intended!
$blog= file_get_contents("powback.tumblr.com/post/"; . $post, NULL, NULL, 766);
After file_get_contents returns, you have in your hands a string. You can do anything you want to it, including cutting out parts of it.
There are two ways to actually do the cutting:
Using string functions like str_replace, preg_replace and others; the exact recipe depends on what you need to do. This approach is kind of frowned upon because you are working at the wrong level of abstraction, but in some cases it has an unmatched performance to time spent ratio.
Parsing the HTML into a DOM tree, modifying it appropriately (this time working at the appropriate level of abstraction) and then turn it back into a string and echo it. This can be more convenient to work with if your requirements are not dead simple and is easier to maintain, but it typically requires more code to be written.
If you want to do something that's most naturally expressed in HTML document terms ("cutting out this <div>") then don't be tempted and go with the second approach.
At that point, $blog is just a string, so you can use normal PHP functions to alter it. Look into these 2:
http://php.net/manual/en/function.str-replace.php
http://us2.php.net/manual/en/function.preg-replace.php
You can parse your output using simple html dom parser and display olythe contents thatyou really want to display