PHP 手册
后退 |  | 前进

# mysqli_sqlstate

(PHP 5)

mysqli_sqlstate

(no version information, might be only in CVS)

mysqli->sqlstate -- Returns the SQLSTATE error from previous MySQL operation

## Description

Procedural style:

string mysqli_sqlstate ( mysqli link )

Object oriented style (property):

class mysqli {
string sqlstate
}

Returns a string containing the SQLSTATE error code for the last error. The error code consists of five characters. '00000' means no error. The values are specified by ANSI SQL and ODBC. For a list of possible values, see http://dev.mysql.com/doc/mysql/en/error-handling.html.

> 注: Note that not all MySQL errors are yet mapped to SQLSTATE's. The value HY000 (general error) is used for unmapped errors.

## 返回值

Returns a string containing the SQLSTATE error code for the last error. The error code consists of five characters. '00000' means no error.

## 参见

mysqli_errno() 和 mysqli_error().

## 范例

例子 1. Object oriented style

`<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* Table City already exists, so we should get an error */
if (!$mysqli->query("CREATE TABLE City (ID INT, Name VARCHAR(30))")) {
printf("Error - SQLSTATE %s.\n", $mysqli->sqlstate);
}
$mysqli->close();
?>`

例子 2. Procedural style

`<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* Table City already exists, so we should get an error */
if (!mysqli_query($link, "CREATE TABLE City (ID INT, Name VARCHAR(30))")) {
printf("Error - SQLSTATE %s.\n", mysqli_sqlstate($link));
}
mysqli_close($link);
?>`

上例将输出：

    Error - SQLSTATE 42S01.

后退 | 起点 | 前进
mysqli_set_opt | 上一级 | mysqli_ssl_set