Having some issues with this search engine I am trying to put together. I’ll provide everything to make things easier. I’m a Web Designer and don’t usually play around with MySQL so I’m quite sure I am missing something obvious here. I get this error whenever I try to search:
Error performing query SELECT firstname, lastname, comments FROM test
WHERE MATCH (firstname, lastname, comments) AGAINST (‘ash’)
Thanks
PHP file (mysql.php)
<?php
// define 'MySQL' class
class MySQL{
private $conId;
private $host;
private $user;
private $password;
private $database;
private $result;
const OPTIONS=4;
public function __construct($options=array()){
if(count($options)!=self::OPTIONS){
throw new Exception('Invalid number of connection parameters');
}
foreach($options as $parameter=>$value){
if(!$value){
throw new Exception('Invalid parameter '.$parameter);
}
$this->{$parameter}=$value;
}
$this->connectDB();
}
// connect to MySQL
private function connectDB(){
if(!$this->conId=mysql_connect($this->host,$this->user,$this->password)){
throw new Exception('Error connecting to the server');
}
if(!mysql_select_db($this->database,$this->conId)){
throw new Exception('Error selecting database');
}
}
// run query
public function query($query){
if(!$this->result=mysql_query($query,$this->conId)){
throw new Exception('Error performing query '.$query);
}
return new Result($this,$this->result);
}
public function escapeString($value){
return mysql_escape_string($value);
}
}
// define 'Result' class
class Result {
private $mysql;
private $result;
public function __construct(&$mysql,$result){
$this->mysql=&$mysql;
$this->result=$result;
}
// fetch row
public function fetchRow(){
return mysql_fetch_assoc($this->result);
}
// count rows
public function countRows(){
if(!$rows=mysql_num_rows($this->result)){
return false;
}
return $rows;
}
// count affected rows
public function countAffectedRows(){
if(!$rows=mysql_affected_rows($this->mysql->conId)){
throw new Exception('Error counting affected rows');
}
return $rows;
}
// get ID form last-inserted row
public function getInsertID(){
if(!$id=mysql_insert_id($this->mysql->conId)){
throw new Exception('Error getting ID');
}
return $id;
}
// seek row
public function seekRow($row=0){
if(!is_int($row)||$row<0){
throw new Exception('Invalid result set offset');
}
if(!mysql_data_seek($this->result,$row)){
throw new Exception('Error seeking data');
}
}
}
?>
PHP file (processform.php)
<?php
// include MySQL-processing classes
require_once 'mysql.php';
try{
// connect to MySQL
$db=new MySQL(array ('host'=>'localhost','user'=>'xxx','password'=>'xxx','database'=>'xxx'));
$searchterm=$db->escapeString($_GET['searchterm']);
$result=$db->query("SELECT firstname, lastname, comments FROM test WHERE MATCH (firstname, lastname, comments) AGAINST ('$searchterm')");
if(!$result->countRows()){
echo '<div class="maincontainer"><h2>No results were found. Go
back and try a new search.</h2></div>'."n";
}
else{
// display search results
echo '<div class="maincontainer"><h2>Your search criteria
returned '.$result->countRows().' results.</h2>'."n";
while($row=$result->fetchRow()){
echo '<div class="rowcontainer"><p><strong>First Name:
</strong>'.$row['firstname'].'<p><p><strong>Last Name:
</strong>'.$row['lastname'].'</p><p><strong>Comments:
</strong>'.$row['comments'].'</p></div>'."n";
}
}
echo '</div>';
}
catch(Exception $e){
echo $e->getMessage();
exit();
}
?>
So there is obviously no FULLTEXT index on firstname, lastname, comments. You should ask your database administrator to add that index for you.