Plz see my problem.

*** code starts here

function byte_convert($bytes)
{
$symbol = array(‘B’, ‘KB’, ‘MB’, ‘GB’, ‘TB’, ‘PB’, ‘EB’, ‘ZB’, ‘YB’);

$exp = 0;
$converted_value = 0;
if( $bytes > 0 )
{
$exp = floor( log($bytes)/log(1024) );
$converted_value = ( $bytes/pow(1024,floor($exp)) );
}

return sprintf( ‘%.2f ‘.$symbol[$exp], $converted_value );
}

$userAgent = ‘Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)’;
$url = ‘http://ksino.com/';

// initialize curl with given url
$ch = curl_init($url);
// make sure we get the header
curl_setopt($ch, CURLOPT_HEADER, 1);
// make it a http HEAD request
curl_setopt($ch, CURLOPT_NOBODY, 1);
// add useragent
curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
//Tell curl to write the response to a variable
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// The maximum number of seconds to allow cURL functions to execute.
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,60);
// Tell curl to stop when it encounters an error
curl_setopt($ch, CURLOPT_FAILONERROR, 1);

$execute = curl_exec($ch);

// Check if any error occured
if(!curl_errno($ch))
{
$bytes = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
// Display the File Size
echo byte_convert($bytes);

$total_time = curl_getinfo($ch);

print_r($total_time);
//echo ‘Took ‘ . $total_time . ‘ seconds to send a request to ‘ . $url;
clearstatcache();
}
curl_close($ch);

**** code ends here

plz run the code, and try to refresh it several time. and u will see the ‘total_time’ value will be changed every time. why?

tahsin.