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# PDO::errorInfo

(no version information, might be only in CVS)

PDO::errorInfo -- Fetch extended error information associated with the last operation on the database handle

## 说明

array PDO::errorInfo ( void )

警告
本函数是实验性的。本函数的行为，包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。

## 返回值

PDO::errorInfo() returns an array of error information about the last operation performed by this database handle. The array consists of the following fields:

Element | Information
--- | ---
0 | SQLSTATE error code (a five-character alphanumeric identifier defined in the ANSI SQL standard).
1 | Driver-specific error code.
2 | Driver-specific error message.

PDO::errorInfo() only retrieves error information for operations performed directly on the database handle. If you create a PDOStatement object through PDO::prepare() or PDO::query() and invoke an error on the statement handle, PDO::errorInfo() will insert an error code of PDO_ERR_NONE into the first element of the returned array. You must call PDOStatement::errorInfo() to return the error information for an operation performed on a particular statement handle.

## 例

例子 1. Displaying errorInfo() fields for a PDO_ODBC connection to a DB2 database
`<?php /* Provoke an error -- the BONES table does not exist */ $err = $dbh->prepare('SELECT skull FROM bones'); $err->execute(); echo "\nPDO::errorInfo():\n"; print_r($err->errorInfo()); ?>`
上例将输出：
    PDO::errorInfo():
    Array
    (
        [0] => 42S02
        [1] => -204
        [2] => [IBM][CLI Driver][DB2/LINUX] SQL0204N  "DANIELS.BONES" is an undefined name.  SQLSTATE=42704
    )

## 参见

PDO::errorCode()
PDOStatement::errorCode()
PDOStatement::errorInfo()

后退 | 起点 | 前进
PDO::errorCode | 上一级 | PDO::exec