mysqli::dump_debug_info
mysqli->error
MySQLi
PHP Manual

# mysqli->errno

# mysqli_errno

(PHP 5)

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

### Beschreibung

Object oriented style (property):

mysqli
int $errno;

Procedural style:

int mysqli_errno ( mysqli `$link` )

Returns the last error code for the most recent MySQLi function call 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.

### Parameter-Liste

`link`

  Nur bei prozeduralem Aufruf: Ein von mysqli_connect() oder mysqli_init() zurückgegebenes Verbindungsobjekt.

### Rückgabewerte

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

### Beispiele

Beispiel #1 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();
?>`

Beispiel #2 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);
?>`

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

    Errorcode: 1193

### Siehe auch

- mysqli_connect_errno()
- mysqli_connect_error()
- mysqli_error()
- mysqli_sqlstate()

mysqli::dump_debug_info
mysqli->error
MySQLi
PHP Manual