PDO::errorInfo

public PDO::errorInfo(): array

ex)

<?php

$db->setAttribute(PDO::ATTR_EMULATE_PREPARES,false);
$stmt = $db->prepare($sql);
if (!$stmt) {
print_r($db->errorInfo());
}

↓

[0] : SQLSTATE error code (a five characters alphanumeric identifier defined in the ANSI SQL standard).

[1] : Driver-specific error code.

[2] : Driver-specific error message.