PDOStatement::errorCode

(PHP 5 >= 5.1.0, PHP 7, PHP 8, PECL pdo >= 0.1.0)

PDOStatement::errorCode — 获取跟上一次语句句柄操作相关的 SQLSTATE

说明

public PDOStatement::errorCode(): ?string

参数

此函数没有参数。

返回值

与 PDO::errorCode() 相同，只是 PDOStatement::errorCode() 只取回 PDOStatement 对象执行操作中的错误码。

示例

示例 #1 检索 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();
?>

以上示例会输出：

PDOStatement::errorCode(): 42S02

参见

PDO::errorCode() - 获取跟数据库句柄上一次操作相关的 SQLSTATE
PDO::errorInfo() - Fetch extended error information associated with the last operation on the database handle
PDOStatement::errorInfo() - 获取跟上一次语句句柄操作相关的扩展错误信息

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vaclav dot sir at gmail dot com ¶

18 years ago

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');
?>

down

dbeecher at tekops dot com ¶

16 years ago

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