Fatal error: Call to a member function fetchAll() on a non-object in pdo

Question

I\'m new to pdo just tried the following and getting fatal error.

$pdo = new pdo(\'mysql:localhost;widget_corp;charset=utf-8\', \'root\', \'\');
$query = $pd         


        

Answer 1

PDO::query return false if your query is wrong.

SELECT * FROM 'users'

should be

SELECT * FROM `users`

Answer 2

Use this code instead:

$pdo = new PDO('mysql:host=localhost;dbname=widget_corp;charset=UTF-8', 'root', '');
$query = $pdo->query("SELECT * FROM `users`");
$result_array = $query->fetchAll(PDO::FETCH_ASSOC);

If this doesn't work, are you sure that PDO is installed properly?

Answer 3

Change:

mysql:localhost;widet_corp

to

mysql:host=localhost;dbname=widget_corp

Also in your posted code:

$query = $pdo->query("SELECT * FROM 'users'");

you have the table name inside single quotes. In Mysql you should use a backtick instead for tables and columns.

    $query = $pdo->query("SELECT * FROM `users`");

Answer 4

$pdo->query() will return false if the query fails. You're not initiating the pdo correctly, and you probably want to check if the query didn't return an error, so:

$pdo = new pdo('mysql:host=localhost;dbname=widget_corp;charset=utf-8', 'root', '');
$query = $pdo->query("SELECT * FROM `users`");
if($query !== false)
{
    $result_array = $query->fetchAll(PDO::FETCH_ASSOC);
}