mysqli::commit
mysqli::$connect_error
mysqli
PHP Manual

# mysqli::$connect_errno

# mysqli_connect_errno

Returns the error code from last connect call

### Description

Object oriented style

string$mysqli->connect_errno;

Procedural style

int mysqli_connect_errno ( void )

Returns the last error code number from the last call to mysqli_connect.

> Note:

> 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.

### Return Values

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

### Examples

Example #1 $mysqli->connect_errno example

Object oriented style

`<?php
$mysqli = @new mysqli('localhost', 'fake_user', 'my_password', 'my_db');
if ($mysqli->connect_errno) {
die('Connect Error: ' . $mysqli->connect_errno);
}
?>`

Procedural style

`<?php
$link = @mysqli_connect('localhost', 'fake_user', 'my_password', 'my_db');
if (!$link) {
die('Connect Error: ' . mysqli_connect_errno());
}
?>`

The above examples will output:

    Connect Error: 1045

### See Also

- mysqli_connect
- mysqli_connect_error
- mysqli_errno
- mysqli_error
- mysqli_sqlstate