Use of undefined constant DB_HOST, une class CRUD
Bonjour.
Avec ma class ci-bas, j'obtiens ces erreurs :
PHP Notice: Use of undefined constant DB_HOST - assumed 'DB_HOST' in /home/public_html/class.php on line 93
PHP Notice: Use of undefined constant DB_USER - assumed 'DB_USER' in /home/public_html/class.php on line 93
PHP Notice: Use of undefined constant DB_PASS - assumed 'DB_PASS' in /home/public_html/class.php on line 93
PHP Notice: Use of undefined constant DB_NAME - assumed 'DB_NAME' in /home/public_html/class.php on line 93
PHP Fatal error: Call to undefined method dao::tableExists() in /home/public_html/class.php on line 56
pourtant, ça semble bien défini?
C'est quoi mon erreur?
Code:
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|
<?php
class dao
{
private $db = NULL;
private $connection_string = NULL;
private $db_host = DB_HOST;
private $db_user = DB_USER;
private $db_pass = DB_PASS;
private $db_name = DB_NAME;
private $con = false;
private $result = array();
public function __construct($db_user = DB_USER, $db_pass = DB_PASS, $db_name = DB_NAME, $db_type = 'mysql', $db_host = 'localhost')
{
$this->db_host = $db_host;
$this->db_user = $db_user;
$this->db_pass = $db_pass;
$this->db_name = $db_name;
$this->connection_string = "mysql:host=".$db_host.";dbname=".$db_name;
return $this;
}
public function connect()
{
if(!$this->con)
{
try {
$this->db = new PDO($this->connection_string,$this->db_user,
$this->db_pass);
$this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$this->con = true;
return $this->con;
}
catch (PDOException $e)
{
return $e->getMessage();
}
}
else
{
return true; //already connected, do nothing and show true
}
}
public function disconnect()
{
if($this->con)
{
unset($this->db);$this->con = false;
return true;
}
}
public function select($table, $rows = '*', $where = null, $order = null)
{
if($this->tableExists($table))
{
$q = 'SELECT '.$rows.' FROM '.$table;
if($where != null)
$q .= ' WHERE '.$where;
if($order != null)
$q .= ' ORDER BY '.$order;
$this->numResults = null;
try {
$sql = $this->db->prepare($q);
$sql->execute();
$this->result = $sql->fetchAll(PDO::FETCH_ASSOC);
$this->numResults = count($this->result);
$this->numResults === 0 ? $this->result = null : true ;
return true;
}
catch (PDOException $e)
{
return $e->getMessage().''.$e->getTraceAsString().'';
}
}
}
public function getResult()
{
return $this->result;
}
public function getRows()
{
return $this->numResults;
}
}
?>
<?php
$db = new dao('user','pass','mabase');
$db->connect();
$result = $db->select('matable');
if ($result === true)
{
echo "result rows ".$db->getRows()." ";
echo "result select ";
print_r($db->getResult());
}
else
{
var_dump($result);
}
$db->disconnect();
?> |
