I originally had a php file pulling in data from another php file. However, I have to change the second php file to an xml file. My question is, how do I read the string between certain tags in the php file using SimpleXML. For Example, here is my XML file:
<?xml version="1.0" encoding="UTF-8"?>
<XMLExample>
<Name>ExampleName</Name>
<Info>ExampleInfo</Info>
<KMLFile>ExampleKML</KMLFile>
</XMLExample>
I previously had this in my php file:
if(strlen($KMLFile)>0){
#echo "<a id=\"links\" href=\"/$place/Area/$KMLFile\">KML File</a> \n";
echo "<a id=\"links\" href=\"/media/$place/markup/xml/$KMLFile\">KML File</a> \n";
}
What I can't figure out is how to change the php code to read the data from the XML file. Any help would be greatly appreciated! Thanks!
Use this code. note.xml is your .xml file.
<?php
$xml=simplexml_load_file("note.xml") or die("Error: Cannot create object");
echo $xml->Name.'<br>';
echo $xml->Info.'<br>';
echo $xml->KMLFile;
?>
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 Have a XML file which have messages and mobile number in it,i reading the XML file get values and display the values ,but now i able to display only the message but i can't able to display the mobile number.below is my code can any one guide me to do this,thanks
my Message.xml file looks like
[TEMPLATE] => Dear xxxxxxx, this is a message from xxxxxxx. Kindly call us regarding your appoitnment tomorrow at 9.30.
[RECIPIENT_NUM] => 0xxxxxxxxxx
php code
<?php
$xml=simplexml_load_file("/data/data/www/Message.xml");
print_r($xml);
echo $xml->TEMPLATE . "<br>";
echo $xml->RECIPIENT_NUM ."<br>";
?>
The XML should look something like this
<xml>
<template>Template</template>
<recipient_num>Number</recipient_num>
</xml>
Just look into the tutorial: http://www.w3schools.com/xml/
Try the following: This will turn the xml into an object so you can access the content directly.
$path = #file_get_contents($url);
$xml = #simplexml_load_string($path);
Follow the example here.
http://www.w3schools.com/php/php_xml_simplexml.asp
Can i use php loops in xml file to list out a list of number incremented file names such as file 1.jpg file2.jpg file3.jpg etc to save me having to manually typing it out.
If so, how do I do this and what doctype etc would the xml file need to have to make it display the loop?
Your question is a little vague, I can't work out if you're trying to read an XML file or write to it.
Assuming you want to read an XML file, and assuming your XML looks a little like this:
<?xml version="1.0" encoding="utf-8" ?>
<rootnode>
<images>
<image>file_1.jpg</image>
<image>file_2.jpg</image>
<image>file_3.jpg</image>
</images>
</rootnode>
you could use SimpleXML to either load the XML file or to load the XML as a string and then return an object to loop through.
http://php.net/manual/en/ref.simplexml.php
Your PHP might look something like this:
if (file_exists('test.xml')) {
$xml = simplexml_load_file('test.xml');
foreach($xml->images AS $image) {
echo $image;
}
} else {
exit('Failed to open test.xml.');
}
What I would do is point to a .php file that outputs XML. All you need to do that is send a header("Content-Type: text/xml"); and make sure you add the at the top of your output.
Here's an example:
<?php
header("Content-Type: text/xml");
print "<?xml version=\"1.0\"?>";
print "<rootNode>";
for(your loop stuff here) {
print "<node>" . $yourDataHere . "</node>";
}
print "</rootNode>";
?>
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.
I have created a XML file using PHP's simple XML, saved the file. When opening the file in php using fopen and printing the contents. my XML looks like this: (see below)
<?xml version="1.0" encoding="UTF-8"?>
<home><orderList><delivery_cost>0.00</delivery_cost><delivery_surname>TEST</delivery_surname><delivery_postcode>1234</delivery_postcode><status>1</status></orderList></home>
I want the xml file looking all indented and on new lines for each element. Does anybody know how to do this?
Thanks
You can do this using the formatOutput property of DOMDocument.
Save your XML like this instead, presuming your XML is in a variable called $yourXML, and you want to save it to a file at $xmlFilePath:
$dom = new DOMDocument();
$dom->loadXML($yourXML);
$dom->formatOutput = true;
$formattedXML = $dom->saveXML();
$fp = fopen($xmlFilePath,'w+');
fwrite($fp, $formattedXML);
fclose($fp);
Code adapted from here.
This is called "pretty printing" and SimpleXML does not do that. If you search on Stack Overflow and elsewhere on the web you'll find custom solutions that do that.
Pretty printing is good for visulation but I don't recommend saving documents in that format.
If you're still looking for a pretty-printer, you can try SimpleDOM's asPrettyXML()
include 'SimpleDOM.php';
$home = simpledom_load_string('<?xml version="1.0" encoding="UTF-8"?>
<home><orderList><delivery_cost>0.00</delivery_cost><delivery_surname>TEST</delivery_surname><delivery_postcode>1234</delivery_postcode><status>1</status></orderList></home>');
echo $home->asPrettyXML();
echo "\n"; for new line in xml
ob_start(); echo '
' . "\n";?>