Question

<?php
    $dbtype = 'mysql';
    $mysql_host = "localhost";
    $mysql_database = "mydb";
    $mysql_user = "root";
    $mysql_password = "";
    try {
        $db = new PDO ( $dbtype . ':host=' . $mysql_host . ';dbname=' . $mysql_database,         $mysql_user, $mysql_password, array (PDO::ATTR_PERSISTENT => true ) );
        return $db;
    } catch ( PDOException $e ) {
        return false;
    }
?>

Above are my db.php

<?php
   require db.php";
   ...
   global $db;
   $stmt = $db->prepare ( "INSERT INTO quote (title, contactname) VALUES (:a, :b);" );

I actually able to run it properly under my IDE (ZendStudo wamp server) but once i upload to host server i got this error. Anybody facing the same problem before can guide me how to fix?

Answer 1

There can me many reasons, but one obivious is that is you had a PDOException, then $db == false, which would explain the error message.

Try to check if $db is correctly set as a PDO or false.