Question

Trying to move to PDO can’t figure out what is wrong with this

$dbh = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser, $dbpass);  
$sql = "SELECT COUNT(*) FROM users WHERE repo=? AND list=? AND email=?";
$q=$dbh->prepare($sql);
$res = $q->execute(array($repo, $list, $email));
$v = $res->fetchColumn();

Answer 1

PDOStatement::execute() returns either TRUE or FALSE (see here), so $res is being set to a boolean and then you’re trying to call a method on it. Try this instead:

$dbh = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser, $dbpass);  
$sql = "SELECT COUNT(*) FROM users WHERE repo=? AND list=? AND email=?";
$q=$dbh->prepare($sql);
if (($res = $q->execute(array($repo, $list, $email))) === FALSE) {
    echo 'Query failed!';
    exit;
}
$v = $q->fetchColumn();