mysqli::$errno

mysqli_errno

(PHP 5, PHP 7, PHP 8)

mysqli::$errno -- mysqli_errnoReturns the error code for the most recent function call

Description

Object-oriented style

Procedural style

mysqli_errno(mysqli $mysql): int

Returns the last error code for the most recent MySQLi function call that can succeed or fail.

Parameters

mysql

Procedural style only: A mysqli object returned by mysqli_connect() or mysqli_init()

Return Values

An error code value for the last call, if it failed. zero means no error occurred.

Examples

Example #1 $mysqli->errno example

Object-oriented style

<?php$mysqli = new mysqli("localhost", "my_user", "my_password", "world");/* check connection */if ($mysqli->connect_errno) {    printf("Connect failed: %s\n", $mysqli->connect_error);    exit();}if (!$mysqli->query("SET a=1")) {    printf("Errorcode: %d\n", $mysqli->errno);}/* close connection */$mysqli->close();?>

Procedural style

<?php$link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) {    printf("Connect failed: %s\n", mysqli_connect_error());    exit();}if (!mysqli_query($link, "SET a=1")) {    printf("Errorcode: %d\n", mysqli_errno($link));}/* close connection */mysqli_close($link);?>

The above examples will output:

Errorcode: 1193

See Also