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# PDO::errorCode

(no version information, might be only in CVS)

PDO::errorCode -- Fetch the SQLSTATE associated with the last operation on the database handle

## Description

int PDO::errorCode ( void )

警告
這個函數是實驗性質的。這個函數的行為、名稱、和關於此函數的任何其他文件在未來PHP的發行中可能會在不通知的情況下改變。 使用此延伸需自行承擔風險。

## Return Values

Returns a SQLSTATE, a five-character alphanumeric identifier defined in the ANSI SQL standard.

PDO::errorCode() only retrieves error codes 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::errorCode() will return PDO_ERR_NONE. You must call PDOStatement::errorCode() to return the error code for an operation performed on a particular statement handle.

## 範例

範例 1. Retrieving a SQLSTATE code

`<?php /* Provoke an error -- the BONES table does not exist */ $dbh->exec("INSERT INTO bones(skull) VALUES ('lucy')"); echo "\nPDO::errorCode(): "; print $dbh->errorCode(); ?>`

The above example will output:

    PDO::errorCode(): 42S02

## 參考

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

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