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mysqli::$connect_error

mysqli_connect_error

(PHP 5, PHP 7, PHP 8)

mysqli::$connect_error -- mysqli_connect_errorReturns a description of the last connection error

Description

Object-oriented style

Procedural style

mysqli_connect_error(): ?string

Returns the error message from the last connection attempt.

Parameters

This function has no parameters.

Return Values

A string that describes the error. null is returned if no error occurred.

Examples

Example #1 $mysqli->connect_error example

Object-oriented style

<?php
/* @ is used to suppress default error messages */
$mysqli = @new mysqli('localhost''fake_user''my_password''my_db');

if (
$mysqli->connect_error) {
    
/* Use your preferred error logging method here */
    
error_log('Connection error: ' $mysqli->connect_error);
}

Procedural style

<?php
/* @ is used to suppress default error messages */
$link = @mysqli_connect('localhost''fake_user''my_password''my_db');

if (!
$link) {
    
/* Use your preferred error logging method here */
    
error_log('Connection error: ' mysqli_connect_error());
}

The above examples will output:

Connection error: Access denied for user 'fake_user'@'localhost' (using password: YES)

See Also

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