[RESOLVED]Query not displying result

[rasana]

Hi All,

I'm very new to PHP and MySql

I've written following code to display port name and country after clicking on go button.
query is correct but it does not display result..
is there any syntax problem..

<form name="frmPort" method="POST" action="<?=$thisPage?>">
<table align="center">
<tr>
<td>Port Name:</td>
<td><input type="text" name="srchPort" /></td>
<td><input type="submit" name="submit" value="GO" /></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<? if(ISSET($_POST['submit'])){
$port_name=$_POST['srchPort'];
$selport="select port,country from selectport where port like '%$port_name%'";
//echo $selport;
$result=mysql_query($selport,$conn);
while($row = mysql_fetch_array($result))
{ ?>
<tr>
<td><?=$row['port']?></td>
<td><?=$row['country']?></td>
<td>&nbsp;</td>
</tr>
<? }
}
?>
</table>
</form>

Actually, my connection string was wrong....my syntax is correct.