[guphed]

Well I think this thread started out by being a mod for changing the exact phrase search to multiple word search before it deviated somewhat before anybody had posted any code for v4.x so I've had to have a pop myself...

This seems to work for me, although I don't use Extra Fields so I've not tested it with that... I'm on 4.0.7.

Change:

		# Search for substring in some fields...
		
		if (!empty($data["by_title"]))
			$condition[] = "$sql_tbl[products].product LIKE '%".$data["substring"]."%'";
		
	 	if (!empty($data["by_shortdescr"]))
		 	$condition[] = "$sql_tbl[products].descr LIKE '%".$data["substring"]."%'";

	 	if (!empty($data["by_fulldescr"]))
			$condition[] = "$sql_tbl[products].fulldescr LIKE '%".$data["substring"]."%'";

		if (!empty($data["extra_fields"]) && $active_modules['Extra_Fields']) {
			foreach($data["extra_fields"] as $k => $v)
				$condition[] = "($sql_tbl[extra_field_values].value LIKE '%".$data["substring"]."%' AND $sql_tbl[extra_fields].fieldid = '$k')";
			$join['extra_field_values'] = "$sql_tbl[products].productid = $sql_tbl[extra_field_values].productid";
			$join['extra_fields'] = "$sql_tbl[extra_field_values].fieldid = $sql_tbl[extra_fields].fieldid AND $sql_tbl[extra_fields].active = 'Y'";
		}
		if (!empty($condition))
			$search_condition .= " AND (".implode(" OR ", $condition).")";

To:

    $ss = split(" ",$data["substring"]);
    $ss_condition = "";
    foreach($ss as $s)
    {
			# Search for substring in some fields...
	      $condition = array();		
			if (!empty($data["by_title"]))
				$condition[] = "$sql_tbl[products].product LIKE '%".$s."%'";
			
		 	if (!empty($data["by_shortdescr"]))
			 	$condition[] = "$sql_tbl[products].descr LIKE '%".$s."%'";
	
		 	if (!empty($data["by_fulldescr"]))
				$condition[] = "$sql_tbl[products].fulldescr LIKE '%".$s."%'";
	
			if (!empty($data["extra_fields"]) && $active_modules['Extra_Fields']) {
				foreach($data["extra_fields"] as $k => $v)
					$condition[] = "($sql_tbl[extra_field_values].value LIKE '%".$s."%' AND $sql_tbl[extra_fields].fieldid = '$k')";
				$join['extra_field_values'] = "$sql_tbl[products].productid = $sql_tbl[extra_field_values].productid";
				$join['extra_fields'] = "$sql_tbl[extra_field_values].fieldid = $sql_tbl[extra_fields].fieldid AND $sql_tbl[extra_fields].active = 'Y'";
			}
	
			if (!empty($condition))
				$ss_condition .= " AND (".implode(" OR ", $condition).")";
    }
  $search_condition .= $ss_condition;