Question

this here below is my class database in php

<?php
class DB
{

    private $SQLcommand;
    private $bd;

    public function setSQLcommand($valor)
    {
        $this->SQLcommand = $valor;
    }
    public function getSQLcommand()
    {
        return($this->SQLcommand);
    }

    function __construct()
    {
        $this->bd = new PDO("mysql:host=localhost;dbname=cpd", "root", "");

    }
    public function ExecSQL()
    {
        if ($this->SQLcommand != "")
            return($this->bd->exec($this->SQLcommand));
        else
            return(false);
    }   
    public function ExecSelect()
    {
        if ($this->SQLcommand != "")
        {
            $data = $this->bd->query($this->SQLcommand);
            return($data->fetchAll());


        }
        else
            return(false);
    }
    function __destruct()
    {
        $this->bd = null;
    }

}
?>

and here is how I instantiate

include_once 'db_class.php';

$e = new DB();
$e->setSQLcommand("INSERT INTO characteristic (id_charac,name_charac)
                VALUES ('','".$_POST["nomecharac"]."')");
$e->ExecSQL();


$p = new DB();
$p->setSQLcommand("select * from characteristic");                  
$data = $p->ExecSelect();

I would ask where in the code I can I put a try catch, that if an error occurs the try catch redirects to the file maintenance.php, and prevent the bank’s User and password are showed…thank you all…

Answer 1

You can put in your constructor __construct()

try {
    $this->bd = new PDO("mysql:host=localhost;dbname=cpd", "root", "");
} catch (PDOException $e) {
    die('Database connection could not be established.');
}