(PHP 5 >= 5.1.0, PECL pdo:0.1-1.0.3)
PDOStatement->errorCode() — Fetch the SQLSTATE associated with the last operation on the statement handle
Identical to PDO->errorCode(), except that PDOStatement->errorCode() only retrieves error codes for operations performed with PDOStatement objects.
Example#1 Retrieving a SQLSTATE code
<?php
/* Provoke an error -- the BONES table does not exist */
$err = $dbh->prepare('SELECT skull FROM bones');
$err->execute();
echo "\nPDOStatement::errorCode(): ";
print $err->errorCode();
?>
上例将输出：
PDOStatement::errorCode(): 42S02