PHP mysqli_connect_errno() Function

Definition

The mysqli_connect_errno() function returns the error code from the last connection error.

Syntax

PHP mysqli_connect_errno() Function has the following syntax.

Return

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

Example

Get the error code from the last connection error

<?php/*from   w  w  w . jav  a  2  s  . c  o m*/
$con=mysqli_connect("localhost","wrong_user","my_wrongPassword","my_WrongDatabase");
// Check connection
if (!$con){
  die("Connection error: " . mysqli_connect_errno());
}
?>