mysqli::$connect_errno
mysqli_connect_errno
(PHP 5, PHP 7, PHP 8)
mysqli::$connect_errno -- mysqli_connect_errno — Returns 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
- mysqli_connect() - Alias of mysqli::__construct
- mysqli_connect_error() - Returns a description of the last connection error
- mysqli_errno() - Returns the error code for the most recent function call
- mysqli_error() - Returns a string description of the last error
- mysqli_sqlstate() - Returns the SQLSTATE error from previous MySQL operation
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