Php/docs/mysqli-stmt.errno
mysqli_stmt::$errno
mysqli_stmt_errno
(PHP 5, PHP 7)
mysqli_stmt::$errno -- mysqli_stmt_errno — Returns the error code for the most recent statement call
说明
面向对象风格
int $mysqli_stmt->errno;
过程化风格
mysqli_stmt_errno
( mysqli_stmt $stmt
) : int
Returns the error code for the most recently invoked statement function that can succeed or fail.
Client error message numbers are listed in the MySQL
errmsg.h header file,
server error message numbers are listed in
mysqld_error.h.
In the MySQL source distribution you can find a complete list of error
messages and error numbers in the file
Docs/mysqld_error.txt.
返回值
An error code value. Zero means no error occurred.
范例
Example #1 面向对象风格
<?php/* Open a connection */$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: %d.\n", $stmt->errno); /* 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($stmt); printf("Error: %d.\n", mysqli_stmt_errno($stmt)); /* close statement */ mysqli_stmt_close($stmt);}/* close connection */mysqli_close($link);?>
以上例程会输出：
Error: 1146.
参见
- mysqli_stmt_error() - Returns a string description for last statement error
- mysqli_stmt_sqlstate() - Returns SQLSTATE error from previous statement operation
