I am not sure about the usage of extract in your while loop, as I have read somewhere it is not a good idea (can't remember my source, so take it with a grain of salt). So, maybe try this:
<?php
$host='localhost';
$user='username';
$password='password';
$database = 'database';
$table = 'cmir_news';
$connect = mysql_connect($host,$user,$password)
or die('Could not connect: ' . mysql_error());
$db = mysql_select_db($database,$connect)
or die('Could not select database');
$query = "SELECT * FROM $table";
$result = mysql_query($query)
or die('Could not Execute Query: ' . mysql_error());
// while results:
while ($row = mysql_fetch_array($result)){
$header = $row['header'];
$content = $row['content'];
echo "$header: $content<br />";
}
?>