update record not working

update record not working

Hello Forum Admins,

   I am PHP developer. and i am using zoho crm api ,and I am trying to update the record.

$curl_handle  = curl_init();
curl_setopt( $curl_handle, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1" );
curl_setopt($curl_handle,CURLOPT_URL,$url);
curl_setopt($curl_handle,CURLOPT_CONNECTTIMEOUT,5);
curl_setopt($curl_handle,CURLOPT_RETURNTRANSFER,true);
curl_setopt($curl_handle,CURLOPT_FRESH_CONNECT,true);//No caching
curl_setopt($curl_handle,CURLOPT_FOLLOWLOCATION,true);
curl_setopt($curl_handle,CURLOPT_MAXREDIRS,1);
$buffer = curl_exec($curl_handle);
curl_close($curl_handle);

echo $buffer;

$url variable holds proper details...because when i copy paste $url contents in browsers address bar and hit enter, it shows me "record updated successfully" message, that means there is no problem with $url, 

I tried many CURL variations but nothing worked it keep returning "false" can u please show me some standard php examples or find whats wrong i m doing ???

I have spent 3 days solving this problem....i posted this in few forums too but didnt find working answer.

Please help  
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