mysqli::$sqlstate

mysqli_sqlstate

(PHP 5, PHP 7)

mysqli::$sqlstate -- mysqli_sqlstateReturns the SQLSTATE error from previous MySQL operation

说明

面向对象风格

过程化风格

string mysqli_sqlstate ( mysqli $link )

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.

Note:

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

参数

link

仅以过程化样式:由mysqli_connect()mysqli_init() 返回的链接标识。

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.

范例

Example #1 $mysqli->sqlstate example

面向对象风格

<?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();
?>

过程化风格

<?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);
?>

以上例程会输出:

Error - SQLSTATE 42S01.

参见

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