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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

说明

int PDO::errorCode ( 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

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.

例

例子 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();
?>

上例将输出：

PDO::errorCode(): 42S02

参见

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

后退起点前进
PDO::__construct上一级PDO::errorInfo