mysqli_stmt::$errno
mysqli_stmt::$errno
mysqli_stmt_errno
(PHP 5, PHP 7)
mysqli_stmt :: $ errno - mysqli_stmt_errno - 返回最近语句调用的错误代码
描述
面向对象的风格
int $mysqli_stmt->errno;
程序风格
int mysqli_stmt_errno ( mysqli_stmt $stmt )
返回可以成功或失败的最近调用的语句函数的错误代码。
客户端错误消息编号列在MySQL errmsg.h头文件中，服务器错误消息编号列在mysqld_error.h中。在MySQL源代码分发中，您可以在Docs / mysqld_error.txt文件中找到错误消息和错误编号的完整列表。
参数
`stmt`
仅过程风格：由mysqli_stmt_init（）返回的语句标识符。
返回值
错误代码值。零意味着没有错误发生。
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: %d.\n", $stmt->errno
/* 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($stmt
printf("Error: %d.\n", mysqli_stmt_errno($stmt)
/* close statement */
mysqli_stmt_close($stmt
}
/* close connection */
mysqli_close($link
?>
上面的例子会输出：
Error: 1146.
