Php ile arama yapmaya çalışıyorum fakat bazı sorunlar var

$trimmed = trim($q); 
  $kt = explode(" ", $trimmed); 
   
  for($i=0;$i<(count($kt));$i++)  
  $a[$i] = "OR URL LIKE '%$kt[$i]%' OR TITLE LIKE '%$kt[$i]%' OR DESCRIPTION LIKE '%$kt[$i]%' OR OWNER_NAME LIKE '%$kt[$i]%' OR RECPR_URL LIKE '%$kt[$i]%'"; 
  $a[0] = "URL LIKE '%$kt[0]%' OR TITLE LIKE '%$kt[0]%' OR DESCRIPTION LIKE '%$kt[0]%' OR OWNER_NAME LIKE '%$kt[0]%' OR RECPR_URL LIKE '%$kt[0]%'"; 
   
  $links		= $db->GetAll("SELECT * FROM {$tables['link']['name']} WHERE STATUS=2 AND ($a[0] $a[1] $a[2] $a[3] $a[4] $a[5] $a[6] $a[7] $a[8] $a[9]) $feat_where $expire_where ORDER BY TITLE ASC");