I'm grabbing an xml doc from the web, picking it apart and spitting it out in my own site. It works great in IE and FF, but for some reason it's throwing me an error in Safari...

Here's the error:
A PHP Error was encountered

Severity: Warning
Message: SimpleXMLElement::__construct() [simplexmlelement.--construct]: Entity: line 2209: parser error : Start tag expected, '<' not found
Filename: libraries/thingy.php
Line Number: 30

Here's the code:

PHP Code:

function HTTPRequest($url)
    {
  $ch = curl_init(); 
    curl_setopt($ch,CURLOPT_URL,$url); 
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); 
    //curl_setopt($ch,CURLOPT_MUTE,1); 
    curl_setopt($ch,CURLOPT_USERAGENT,$_SERVER["HTTP_USER_AGENT"]); 
    curl_setopt($ch, CURLOPT_TIMEOUT, 10); //times out after 10 
    curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1); 
    $data = curl_exec ($ch); 
    curl_close ($ch); 
    return $data; 
    }
 
 function GetXML()
 {
 
  $xmlID = $this->HTTPRequest("some.xml");
  $xml = new SimpleXMLElement($xmlID);  //  <--- line 30
 
  return $xml;
 } 


Anyone know why Safari is bugging out?

The xml is malformed, as the error message tells you:

Start tag expected, '<' not found

OMG

PHP Code:

curl_setopt($ch,CURLOPT_USERAGENT, $_SERVER["HTTP_USER_AGENT"]); 


The problem is definitely here.

To debug this issue write the result of $this->HTTPRequest somewhere and ensure that you didn't receive some sht instead of required data. It seems like for some reason the source sends sht to safari. Try to always use user-agent that works if this is not a critical requirement.