LinuxQuestions.org - blank page in browser when viewing PHP

Hi,I've got the following weird error,

I'm doing a simple mysql_connect and then i want to view it through a browser,but somewhere something is wrong.Say i have a file test.php with the following code...

Code:

$db = mysql_connect("localhost","root","") or die(mysql_error());

mysql_select_db("pbx2") or die(mysql_error());



$sql = "select * from users";

$res = mysql_query($sql) or die(mysql_error());



echo "$sql";



while ($row=mysql_fetch_object($res)) {

        echo "$row->src <br>";

}

if i type in console php test.php it give me the output,(the sql statement and all the users),but if i go to firefox,or any other browser,it just gives a bloody blank page.I have traced it to the point where i do mysql_connect statement.If i echo before that,it prints,but not afterwards..

What can cause this?Thanks for any help