So I've been working on this SIMPLE AS HELL php code and cannot figure out why it will not work. All I'm trying to do is parse some data inside an html file and display it all nice and neat. Here is my xml file
<?xml version="1.0" encoding="UTF-8"?>
<posts>
<post>
<title>Overview</title>
<item>Why are great</item>
<item>Who WonderWidgets</item>
</post>
</posts>
and here is my php inside the html file...
<?php
$posts = simplexml_load_file('/Users/Sam/Desktop/untitled\ html/posts.xml')
echo $posts->post->title;
?>
I have tried everything I can think of...
The echo echoes only
->post->title; ?>
Why is it echoing '?>' ?
Is anyone else having this problem or am I just too stupid to figure out what is wrong here...
Other Information:
It seems as though the variable $posts is empty when I tried this in the command line php.
I cannot occupy it and I have tried to do so with multiple xml files...HELP!
Edit:
I just tried this in my php shell and I get this error:
php > $posts = simplexml_load_file('posts.xml')
php > echo $posts
php > echo $posts->post->title;
Parse error: syntax error, unexpected T_ECHO in php shell code on line 2
My working directory is / and I have the posts.xml stored there.
I tried putting your XML in test.xml and tried your example. It worked fine. I got the output as overview.
Check your path to the file. Check the slashes in the path.
$posts = simplexml_load_file('test.xml');
echo $posts->post->title;
Related
Why can't I use PHP in an .xml file at the same time grab it with SimpleXMLElement? When one works, the other doesn't.
Example: If I use PHP in the .xml file like
file.xml.php
<?php
require('db.php');
header('Content-Type: application/xml; charset=utf-8');
$updated_date = date('l', filemtime('file.xml.php'));
?>
<?xml version="1.0" encoding="UTF-8" ?>
<content>
<value name="Content 1" val="Value 1"></value>
<value name="Content 2" val="Value 2"></value>
<value name="Content 3" val="Value 3"></value>
<value name="Last Updated" val="<?php echo $updated_date; ?>"></value>
</content>
It works fine. But if I use SimpleXMLElement to get the file:
$xmlstring = file_get_contents('file.xml');
$xmlObject = new SimpleXMLElement($xmlstring);
foreach($xmlObject->children() as $node) {
$arr = $node->attributes();
echo $arr['name'] . ':' . $arr['val'];
}
it gives me this error:
PHP Fatal error: Uncaught exception 'Exception' with message 'String could not be parsed as XML' in /var/www/html/get_xml.php:336\nStack trace:\n#0 /var/www/html/get_xml.php(336): SimpleXMLElement->__construct('<?php??require(...')\n#1 {main}\n
I know it's telling me that the xml file cannot be read. However, when I read the xml file through its own URL, it works fine as if it was just another xml file.
Is it not possible to use PHP in .xml files and grab them at the same time? Without PHP, the file is kind of useless to me. Unless if I can just use the plain name so that it doesn't show that error. I know it has to do something with the require.
When you're getting the file, you need to ensure it's actually being parsed by PHP first. If you're just getting the PHP/XML source file from disk, it will still contain the PHP code: The code won't have been executed, meaning you'll simply have an invalid XML file.
As you've already found out, grabbing the file in a browser, it's fine: You can simulate this via PHP by using file_get_contents($urlToTheXmlPhpFile). Note, this has to be a URL to the file via a webserver: If you're just using a path to a file on your local disk, this won't work and you'll have the same problem - PHP won't have executed the file, so it will be a malformed combination of XML and PHP still.
To clarify:
file_get_contents('myfile.xml.php'); // Malformed - Attempting to parse source code.
file_get_contents('http://mydomain/myfile.xml.php'); // This should work.
If you're simply trying to require the PHP XML file via your local filesystem, rather than via a webserver, you could use eval to execute the PHP code. Do so with caution though, as this has the potential to enable arbitrary code execution for anyone who is able to change the XML file.
$validXmlString = eval(file_get_contents('myfile.xml.php')); // Be careful with this.
I gotta be doing something stupid here, cause this code ain't workin
$semXML = new DOMDocument();
$semXML->load('<rss></rss>');
$midXML = $semXML->saveXML();
$uploads = wp_upload_dir();
file_put_contents($uploads['path'].$title.'.xml', $midXML);
It generates an XML file, but the only thing inside it is:
<?xml version="1.0"?>
any help is appreciated, been at this project for two days straight now o_O
Try
$semXML->loadXML('<rss></rss>');
to load XML from a string. Just running ->load(...) expects a file as parameter.
I have an xml file running in my server. While everything is working fine in my localserver, but when I upload it on my server, and when many people are using it, I get an error in my xml file.
I am using simplexml in php to read and update data.
For example,
I have the following structure of my xml file
<?xml version="1.0"?>
<db>
<uid></uid>
<score></score>
</db>
While it works perfectly for some time, but after some time, some elements get appended in my xml file. For example,
<db>
<uid></uid>
<score></score>
</db>/score</db>
or
<db>
<uid></uid>
<score><//score>
</db>
or
<db>
<uid></uid>
<core></score>
</db>
and then I get parsing error. Is it because many people are writing to my xml file at the same time? I am using LOCK_EX so that shouldn't be a problem
This is how I am opening it-
$data= new SimpleXMLElement($file, null, true);
And this is how I am closing it-
file_put_contents($file, $data->asXML(), LOCK_EX);
And it works perfectly all right in my localserver. And it works fine for some time when I upload it online but then suddenly weird things happen to my xml file. What's wrong?
Edit:
My update code-
<?php
include('functions.php');
$winid= $_GET['wid'];
$loseid=$_GET['lid'];
$winid=intval($winid);
$loseid=intval($loseid);
$file="data.xml";
$data= new SimpleXMLElement($file, null, true);
$winner=intval($data->score[$winid]);
$loser=intval($data->score[$loseid]);
$exp_winner=expected($loser,$winner);
$new_win=win($winner,$exp_winner);
$exp_loser=expected($winner,$loser);
$new_lose=loss($loser,$exp_loser);
$data->score[$winid]=$new_win;
$data->score[$loseid]==$new_lose;
file_put_contents($file, $data->asXML(), LOCK_EX);
header("Location: index.php");
?>
Try changing all occurrences of $data->score['string'] to $data->score->string. See if it helps!
Example: change $winner=intval($data->score[$winid]); to $winner=intval($data->score->$winid);
Also, you have accidentally wrote two equal signs on this line $data->score[$loseid]==$new_lose;!
I made a code in php. I want a XML output in browser but it shows error. Actually it works fine in locally. But when i hosted it shows error as "XML Parsing Error: junk after document element".
<?php
header("Content-type: text/xml");
echo '<?xml version="1.0" encoding="ISO-8859-1"?>';
echo '<group>';
echo '<family>';
echo '<person>';
echo 'first name';
echo '</person>';
echo '</family>';
echo '</group>';
?>
plese help me.
You have a white-space before your <\?php so before <\?xml
It is causing the error.
Put a die(); after echo '</group>';.
If that clears up your error, then something is being output after the code you posted.
Alternatively you could prepare your XML like:
<?php header("Content-type: text/xml"); ?>
<?xml version="1.0" encoding="ISO-8859-1"?>
<group>
<family>
<person>first name</person>
</family>
</group>
Your script itself works fine in my local environment.
The problem probably comes from somewhere else.
You may have something outputed after your script.
And it is not a white-space before php cause otherwise you would have an error similar to :
XML declaration allowed only at the start of the document
I have been working on a project that displays data in an XML file. (It's kind of like an API). I know how to parse XML with PHP, and how to make an XML file in PHP, but they don't work together. :)
Basically, I have two files: parse.php and xml.php.
xml.php grabs info from a MySQL database, and outputs it as XML.
parse.php loads and parses xml.php and outputs it as HTML.
If I run parse.php, it does not load xml.php. However, if I copy the outputted XML (from xml.php) and save it as a xml.xml file (and change the filename in parse.php to 'xml.xml') it works. I'd really appreciate any help.
Content of parse.php:
<?php
$doc = "xml.php";
$doc = #simplexml_load_file($doc) or die("Server Error: Recipe not found!");
$title = $doc->title;
echo $title
?>
Content of xml.php:
<?php
header("Content-type: text/xml");
$dbc = mysql... //gets data from database
echo "<!DOCTYPE..."; //xml stuff here
echo "<title>" . $dataFromMySQL . "</title>";
?>
The database connection works, and the DOCTYPE in the XML is ok, so that's not the problem.
Again, I only get the problem when I generate XML dynamically using PHP. If it's a .XML file, it works fine.
Can anyone help me?
Thanks.
simplexml_load_file will try to actually load the php contents of the xml.php file. It will not run that file first. You need to do some rewriting or use this ugly solution:
ob_start();
include 'xml.php';
$xml = ob_get_clean();
$doc = simplexml_load_string($xml);
//...
NOTE: I like #lonesomeday's proposed solution better, it will just require more rewriting.
#simplexml_load_file($doc);
That is where your problem is. This does not execute xml.php, but attempts to parse that file -- the PHP code that you've written -- as XML. Obviously (since it isn't XML) this won't work.
You have to find a way of getting the output from executing xml.php into parse.php.
The easy way to do this would be to change all your echo calls into $xml .= calls, and simply include xml.php into parse.php.
// xml.php
$xml = '';
$xml .= "<!DOCTYPE..."; //xml stuff here
$output .= "<title>" . $dataFromMySQL . "</title>";
// parse.php
include('xml.php');
simplexml_load_string($xml);
Note that your problem here shows the foolishness of using the error suppression operator #. If you hadn't used it, PHP would have shown you various errors which would have helped you to realise what the problem was.
Addendum: it occurs to me that the best way actually is to forget about the pointless XML step along the way and just convert the database output into HTML.
If you want to do this without rewriting xml.php, you can get PHP to process the file by accessing via url:
$doc = file_get_contents("http://localhost/xml.php");
You're literally loading the local file. Unless you evaluate it, the code doesn't run, so you'll just get the code itself.
You could use CURL to download xml.php over HTTP, or you could make the XML-generation component of the xml.php a callable function which you simply include and execute.
parse.php:
<?php
include('xml.inc');
$doc = #simplexml_load_string(xml_function()) or die("Error");
echo $doc->title;
xml.php:
<?php
include('xml.inc');
header("Content-type: text/xml");
echo xml_function();
xml.inc:
<?php
function xml_function() {
$dbc = mysql... //gets data from database
$xml = "<!DOCTYPE..."; //xml stuff here
$xml .= "<title>" . $dataFromMySQL . "</title>";
return $xml;
}
But... even that seems silly, honestly, when you could have both output methods connect to the same data and skip a generation/parse step. Simply output HTML/XML conditionally.