Php/docs/mysqli-stmt.error
mysqli_stmt::$error
mysqli_stmt_error
(PHP 5, PHP 7)
mysqli_stmt::$error -- mysqli_stmt_error — Returns a string description for last statement error
说明
面向对象风格
string $mysqli_stmt->error;
过程化风格
mysqli_stmt_error
( mysqli_stmt $stmt
) : string
Returns a string containing the error message for the most recently invoked statement function that can succeed or fail.
返回值
A string that describes the error. An empty string if no error occurred.
范例
Example #1 面向对象风格
<?php/* Open a connection */$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();?>
Example #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);?>
以上例程会输出：
Error: Table 'world.myCountry' doesn't exist.
参见
- mysqli_stmt_errno() - Returns the error code for the most recent statement call
- mysqli_stmt_sqlstate() - Returns SQLSTATE error from previous statement operation
