Asked  1 Year ago    Answers:  5   Viewed   13 times

How to print an XML file to the screen in PHP?

This is not working:

$curl = curl_init();        
curl_setopt ($curl, CURLOPT_URL, 'http://rss.news.yahoo.com/rss/topstories');   
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);   
$result = curl_exec ($curl);   
curl_close ($curl);    
$xml = simplexml_load_string($result);
echo $xml;

Is there a simple solution? Maybe without SimpleXML?

 Answers

3

You can use HTTP URLs as if they were local files, thanks to PHP's wrappers

You can get the contents from an URL via file_get_contents() and then echo it, or even read it directly using readfile()

$file = file_get_contents('http://example.com/rss');
echo $file;

or

readfile('http://example.com/rss');

Don't forget to set the correct MIME type before outputing anything, though.

header('Content-type: text/xml');
Sunday, June 13, 2021
 
Anax
 
1

Actually there are four relatively simple ways to read an XML file:

  • DOM which uses the DOM API (and therefore has to load the whole document into memory)
  • SimpleXML which provides a very simple and elegant way to parse XML documents (but lacks a lot of document manipulation methods), it also loads the whole document into memory
  • XMLReader is a stream-based XML pull parser. It's usage is not as intuitive as the usage of both other options above, but it can be a life-saver when you have to parse large documents (as it does not need to load the whole document into memory and operates on the XML stream). The nice thing is that it allows you to inter-operate with the DOM via XMLReader::expand().
  • XML Parser is a very low-level component which allows you to create SAX parsers, which means that you define handler functions which will be called when reading the XML file; essentially they have the same benefits as the XMLReader (operating on streams)

My personal favorites are:

  • SimpleXML when parsing relatively small XML files without the need to modifiy them
  • XMLReader when parsing large XML files
Thursday, April 1, 2021
 
1

A very simplistic cache would be to store the xml file into a directory, and updated every hour or so

$cacheName = 'somefile.xml.cache';
// generate the cache version if it doesn't exist or it's too old!
$ageInSeconds = 3600; // one hour
if(!file_exists($cacheName) || filemtime($cacheName) > time() + $ageInSeconds) {
  $contents = file_get_contents('http://www.something.com/foo.xml');
  file_put_contents($cacheName, $contents);
}

$dom = simplexml_load_file($cacheName);
// ...

note: This of course assumes several things like the file was successfully generated, the remote file successfully downloaded, etc.

Thursday, April 1, 2021
 
4

On some installations, there is a bug in pecl. Find this line;

exec $PHP -C -n -q $INCARG -d date.timezone=UTC -d output_buffering=1 -d variables_order=EGPCS -d safe_mode=0 -d register_argc_argv="On" $INCDIR/peclcmd.php "$@" 

remove the -n

If you want to script it, try:

sed -i "$ s|-n||g" /usr/bin/pecl
Saturday, May 29, 2021
 
Axalix
 
1

If anyone should be interested, i have provided the correct answer:

$soapUrl = "http://privpakservices.schenker.nu/package/package_1.3/packageservices.asmx?op=SearchCollectionPoint";

$xml_post_string = '<?xml version="1.0" encoding="utf-8"?><soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"><soap12:Body><SearchCollectionPoint xmlns="http://privpakservices.schenker.nu/"><customerID>XXX</customerID><key>XXXXXX-XXXXXX</key><serviceID></serviceID><paramID>0</paramID><address>RiksvŠgen 5</address><postcode>59018</postcode><city>Mantorp</city><maxhits>10</maxhits></SearchCollectionPoint></soap12:Body></soap12:Envelope>';

$headers = array(
"POST /package/package_1.3/packageservices.asmx HTTP/1.1",
"Host: privpakservices.schenker.nu",
"Content-Type: application/soap+xml; charset=utf-8",
"Content-Length: ".strlen($xml_post_string)
); 

$url = $soapUrl;

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_post_string);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$response = curl_exec($ch); 
curl_close($ch);

$response1 = str_replace("<soap:Body>","",$response);
$response2 = str_replace("</soap:Body>","",$response1);

$parser = simplexml_load_string($response2);
Wednesday, August 11, 2021
 
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