Dear Nasreen,
You could also do something like this:
$query = "select * FROM gig g, venue v, genre ge ";
if($gig_name) {
$wheres[] = "g.gigName LIKE '%".$gig_name."%'";
}
if($gig_date) {
$wheres[] = "g.gig_date LIKE '%".$sdate."%'";
}
if(is_array($wheres)) {
$wheres = implode(" OR ", $wheres);
$query .= " WHERE $wheres";
}
This has fewer if statements than basing it off of the number of fields and then checking if a value exists to add the " OR " between the statements.
Beth
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