simplexml_load_file bing rss failed

[webhostnix]

Hi,

I try to scrape bing rss via simplexml_load_file. I run the script 100x. But the result was never reached 100 percent. Please help me whats litespeed parameter that I have to tune. Here is the source code :

<?php
function shutdown() 
{ 
     $a = error_get_last(); 
     if(is_null($a))
     	echo 'This hosting is not recommended.<br>';
} 
register_shutdown_function('shutdown'); 
?>
<div style="font-size:100%">

<?php
echo 'IP:' . $_SERVER["SERVER_ADDR"] . '<br>';
$success = 0;
for($i = 1; $i <= 100; $i++){
	$result = simplexml_load_file('http://www.bing.com/search?q='.$i.'&format=rss');
	$result = $result->xpath('//channel/item');
	
	$count = count($result);
	if($count > 0) {
		$success++;
		echo '|';
	}
	else{
		echo '-';
	}
}
echo '<br>The Success Rate Simplexml_Load_File = ' . $success/100*100 . '%<br>';
?></div>

Thanks