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mysqli_stmt::$error

mysqli_stmt_error

(PHP 5, PHP 7, PHP 8)

mysqli_stmt::$error -- mysqli_stmt_errorReturns a string description for last statement error

说明

面向对象风格

过程化风格

mysqli_stmt_error(mysqli_stmt $statement): string

Returns a string containing the error message for the most recently invoked statement function that can succeed or fail.

参数

statement

仅以过程化样式:由 mysqli_stmt_init() 返回的 mysqli_stmt 对象。

返回值

A string that describes the error. An empty string if no error occurred.

示例

示例 #1 面向对象风格

<?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->error);

/* close statement */
$stmt->close();
}

/* close connection */
$mysqli->close();
?>

示例 #2 过程化风格

<?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_error($stmt));

/* close statement */
mysqli_stmt_close($stmt);
}

/* close connection */
mysqli_close($link);
?>

以上示例会输出:

Error: Table 'world.myCountry' doesn't exist.

参见

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