how can I parse xml data in php -

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I am trying to figure out how it will work

for testing purposes , I have created two websites.

I'm calling a RAST service from each other

I pull XML data with file_get_contents

If I resonate it, then I would use a string data Can see

But how can I use simpelxml to remove data from nodes?

If I use simplexml_load_file ($ url), I get some error on which the XML declaration is starting from the document?

I have it in testfile 

   $ xml & lt; / h3 & gt; & lt; br & gt;"; ? & Gt;

This was XML I sent to.

I send it from a class file which I add to my PHP file above if I'm sure the web service has been called, maybe what to do with the announcement error ? 

  header ('content-type: text / xml'); Echo "& lt;? Xml version = \" 1.0 \ "? & Gt; \ n"; Echo "& lt; reaction & gt; \ n"; Echo "\ t  $ status_code & lt; / status & gt; \ n"; Echo "t \ t  Geen  gt; \ n"; Echo "& lt; / response & gt;";

Thanks, Richard

Looks like an empty line At the top of the file, when it should start with the XML declaration, for example: 

  & lt ;? Xml version = "1.0" encoding = "UTF-8"? & Gt;

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