mysqli::$connect_errno

mysqli_connect_errno

(PHP 5, PHP 7, PHP 8)

mysqli::$connect_errno -- mysqli_connect_errnoReturns the error code from last connect call

Description

Object-oriented style

Procedural style

mysqli_connect_errno(): int

Returns the error code from the last connection attempt.

Parameters

This function has no parameters.

Return Values

An error code for the last connection attempt, if it failed. Zero means no error occurred.

Examples

Example #1 $mysqli->connect_errno example

Object-oriented style

<?php

mysqli_report
(MYSQLI_REPORT_OFF);
/* @ is used to suppress warnings */
$mysqli = @new mysqli('localhost''fake_user''wrong_password''does_not_exist');
if (
$mysqli->connect_errno) {
    
/* Use your preferred error logging method here */
    
error_log('Connection error: ' $mysqli->connect_errno);
}

Procedural style

<?php

mysqli_report
(MYSQLI_REPORT_OFF);
/* @ is used to suppress warnings */
$link = @mysqli_connect('localhost''fake_user''wrong_password''does_not_exist');
if (!
$link) {
    
/* Use your preferred error logging method here */
    
error_log('Connection error: ' mysqli_connect_errno());
}

See Also

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