PHP mysqli_connect_error()Functions

PHP MySQLi 参考手册PHP MySQLi Reference Manual

Examples

Returns the error description of the last connection error:

<?php
$con=mysqli_connect("localhost","wrong_user","my_password","my_db");
// Check connection
if (!$con)
{
    die("Connection error: ". mysqli_connect_error());
}
?>

Definition and Usage

The mysqli_connect_error() function returns the error description of the last connection error.

Syntax

mysqli_connect_error();

Technical Details

Return value: Returns a string describing the error. Returns NULL if no error occurred.
PHP Version: 5+

PHP MySQLi 参考手册PHP MySQLi Reference Manual Other Extensions