Returns the error code for the most recent function call

# mysqli::$errno

# mysqli_errno

(PHP 5, PHP 7, PHP 8)

mysqli::$errno -- mysqli_errno — Returns the error code for the most recent function call

### Description

Object-oriented style

int $mysqli->errno;

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

- mysqli_connect_errno() - Returns the error code from last connect call
- mysqli_connect_error() - Returns a description of the last connection error
- mysqli_error() - Returns a string description of the last error
- mysqli_sqlstate() - Returns the SQLSTATE error from previous MySQL operation

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