Not connecting to mysql database

hi,
Actually i’m trying to connect to remote database from my asterisk. inside the script i’m trying to connect but some problem is there…

here is my script:::

$db = ‘chaitu’;
$dbuser = ‘chaitu’;
$dbpass = ‘magindia123’;
$dbhost = ‘192.168.21.33’;

mysql_connect($dbhost,$dbuser,$dbpass);
mysql_select_db($db); //or die(“could not open database”);
$result=mysql_query(“select forward1 from service where id=’%$no%’”);

in CLI:::

– Launched AGI Script /phpagi-2.14/total.php
[Apr 15 00:20:02] NOTICE[22742]: chan_sip.c:15696 handle_request_subscribe: Received SIP subscribe for peer without mailbox: pra
– AGI Script Executing Application: (Dial) Options: (SIP/)
[Apr 15 00:20:03] WARNING[22765]: res_config_mysql.c:144 realtime_mysql: MySQL RealTime: Failed to query database. Check debug for more info.
[Apr 15 00:20:03] WARNING[22765]: res_config_mysql.c:144 realtime_mysql: MySQL RealTime: Failed to query database. Check debug for more info.
[Apr 15 00:20:03] WARNING[22765]: chan_sip.c:2984 create_addr: No such host:

please hep me…any solution???