mysqli_stmt::$sqlstate
(PHP 5, PHP 7)
mysqli_stmt :: $ sqlstate - mysqli_stmt_sqlstate - 从前面的语句操作返回SQLSTATE错误
描述
面向对象的风格
string $mysqli_stmt->sqlstate;
程序风格
string mysqli_stmt_sqlstate ( mysqli_stmt $stmt )返回一个字符串，其中包含可以成功或失败的最近调用的预准备语句函数的SQLSTATE错误代码。错误代码由五个字符组成。'00000'表示没有错误。这些值由ANSI SQL和ODBC指定。有关可能值的列表，请参阅?http://dev.mysql.com/doc/mysql/en/error-handling.html。
参数
`stmt` 仅过程风格：由mysqli_stmt_init（）返回的语句标识符。
返回值
返回包含上次错误的SQLSTATE错误代码的字符串。错误代码由五个字符组成。'00000'表示没有错误。
注释
注意：并不是所有的MySQL错误都被映射到SQLSTATE的。值HY000（一般错误）用于未映射的错误。
例子
Example #1 Object oriented style
<?php
/*?Open?a?connection?*/
$mysqli?=?new?mysqli("localhost",?"my_user",?"my_password",?"world");
/*?check?connection?*/
if?(mysqli_connect_errno())?{
????printf("Connect?failed:?%s\n",?mysqli_connect_error());
????exit();
}
$mysqli->query("CREATE?TABLE?myCountry?LIKE?Country");
$mysqli->query("INSERT?INTO?myCountry?SELECT?*?FROM?Country");
$query?=?"SELECT?Name,?Code?FROM?myCountry?ORDER?BY?Name";
if?($stmt?=?$mysqli->prepare($query))?{
????/*?drop?table?*/
????$mysqli->query("DROP?TABLE?myCountry");
????/*?execute?query?*/
????$stmt->execute();
????printf("Error:?%s.\n",?$stmt->sqlstate);
????/*?close?statement?*/
????$stmt->close();
}
/*?close?connection?*/
$mysqli->close();
?>Example #2 Procedural style
<?php
/*?Open?a?connection?*/
$link?=?mysqli_connect("localhost",?"my_user",?"my_password",?"world");
/*?check?connection?*/
if?(mysqli_connect_errno())?{
????printf("Connect?failed:?%s\n",?mysqli_connect_error());
????exit();
}
mysqli_query($link,?"CREATE?TABLE?myCountry?LIKE?Country");
mysqli_query($link,?"INSERT?INTO?myCountry?SELECT?*?FROM?Country");
$query?=?"SELECT?Name,?Code?FROM?myCountry?ORDER?BY?Name";
if?($stmt?=?mysqli_prepare($link,?$query))?{
????/*?drop?table?*/
????mysqli_query($link,?"DROP?TABLE?myCountry");
????/*?execute?query?*/
????mysqli_stmt_execute($stmt);
????printf("Error:?%s.\n",?mysqli_stmt_sqlstate($stmt));
????/*?close?statement?*/
????mysqli_stmt_close($stmt);
}
/*?close?connection?*/
mysqli_close($link);
?>上面的例子会输出：
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