Question

    <?php session_start(); 
    $user =$_GET['user']; 
    $conn = mysql_connect("localhost","...","...");
    mysql_select_db("..."); 
$sql= "SELECT filter FROM userfilter WHERE user='$user'"; 
$mksql = mysql_query($sql); while($row =mysql_fetch_assoc($mksql)) {    
$filter=$row['filter'];     
    $sql2 = "SELECT DISTINCT * FROM rss WHERE MATCH(content,title) AGAINST ('$filter')";    
    $mksql2 = mysql_query($sql2) or die(mysql_error());
    while($rows=mysql_fetch_assoc($mksql2))
    { echo .....    } 
    ?>

If I have two rows content that contains the $filter ,it outputs me that content but it’s repeating.
For example:

title|content

asd |This is a sample content ,number one

das
|This is a
sample content ,number two

….

And if my keywords are "sample" and "number" ,it outputs me twice the title and the content.How to prevent that?

Answer 1

You should combine your first result, and issue single query instead doing a loop and query

$filters = array();
while($row =mysql_fetch_assoc($mksql)) 
{
  $filters[$row['filter']] = '+'.$row['filter'];
}
/* free result */

$sql2 = "SELECT * FROM rss ".
        "WHERE MATCH(content,title) ".
        "AGAINST ('".implode(' ', $filters)."' in boolean mode)";
...