Why SQLite3 errors are not exceptions? - php

Question

I have JSON-RPC handler function that handle objects like this:
class Service {
public function sqlite_query($token, $filename, $query) {
if (!$this->valid_token($token)) {
throw new Exception("Access Denied: Invalid Token");
}
$db = new SQLite($filename);
$res = $db->query($query);
if ($res) {
if (preg_match("/^\s*INSERT|UPDATE|DELETE|ALTER|CREATE/i", $query)) {
return $db->rowAffected();
} else {
return $res->fetchAll();
}
} else {
throw new Error("Coudn't open file");
}
}
}
SQLite is a class that call SQLite 2 or 3. The code catch all exceptions but when I try to execute invalid SQL I got not exception but php error handled by this code:
set_error_handler('error_handler');
ini_set('display_errors', 1);
ini_set('track_errors', 1);
ob_start();
function error_handler($err, $message, $file, $line) {
global $stop;
$stop = true;
$content = explode("\n", file_get_contents($file));
header('Content-Type: application/json');
$id = extract_id();
$error = array(
"code" => 100,
"message" => "Server error",
"error" => array(
"name" => "PHPErorr",
"code" => $err,
"message" => $message,
"file" => $file,
"at" => $line,
"line" => $content[$line-1]));
ob_end_clean();
echo response(null, $id, $error);
exit();
}
Is there a way to make SQLite throw exception?

Answer 1

Yes, use PHP's PDO to access SQLite3 (not the SQLite function). PDO is arguably the best and now standard and preferred way to access any database, including SQLite3. You can make PDO throw exceptions by specifying \PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION when instantiating a PDO object.