(PHP 5 >= 5.1.0, PECL pdo >= 0.1.0)
PDOStatement::errorCode — 获取跟上一次语句句柄操作相关的 SQLSTATE
与 PDO::errorCode() 相同，只是 PDOStatement::errorCode() 只取回 PDOStatement 对象执行操作中的错误码。
Example #1 取回一个 SQLSTATE 码
<?php
/* 引发一个错误 -- BONES 数据表不存在 */
$err = $dbh->prepare('SELECT skull FROM bones');
$err->execute();
echo "\nPDOStatement::errorCode(): ";
print $err->errorCode();
?>
以上例程会输出：
PDOStatement::errorCode(): 42S02
dbeecher at tekops dot com (2008-08-21 14:50:34)
Neither this property nor the PDOStatement::errorInfo() properties are available if you create your own exception handler.
I am using PHP 5.2.4, PDO_INFORMIX 1.2.0.
Making this call at any point in the program after setting your own exception handler produces an error:
PHP Notice: Undefined property: PDOStatement::$errorCode in new_query.php on line
or
PHP Notice: Undefined property: PDOStatement::$errorInfo in new_query.php on line
But if I set the PDO to SILENT, only set error codes with:
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT)
Then process with if/else the call to this functions works fine. The examples below only do error checking to show the result codes of this function. Normally you would want more.
FAILS:
$dbh = new PDO("informix...")
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
try {
$result = $dbh->query("asdfkjasdfkjasdfjk"); /* obvious sql error */
if ($result) print "success!";
}
catch
{
$myeCode = $dbh->errorCode();
/* do stuff with error */
};
$dbh=0;
The error handler gets called but knows nothing about $dbh->errorCode or $dbh->errorInfo.
WORKS:
$dbh = new PDO("informix...")
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);
$result = $dbh->query("asdfkjasdfkjasdfjk"); /* obvious sql error */
if ($result)
{
/* process result */
print "success!";
/* all done, didn't make any changes */
$dbh->rollback();
}
else
{
$myeCode = $dbh->errorCode();
print_r($myeCode);
};
$dbh=0; /* close connection */
I hope this helps someone else.
Cheers,
David
vaclav dot sir at gmail dot com (2006-06-05 08:59:37)
Statement's errorCode() returns an empty string before execution, and '00000' (five zeros) after a sucessfull execution:
<?php
$stmt = $pdo->prepare($query);
assert($stmt->errorCode === '');
$stmt->execute();
assert($stmt->errorCode === '00000');
?>