update : 2015.11.03
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Returns the error code from last connect call
mysqli
PHP Manual

mysqli::$connect_errno

mysqli_connect_errno

(PHP 5)

mysqli::$connect_errno -- mysqli_connect_errno — Returns the error code from last connect call

설명

객체 기반 형식

int $mysqli->connect_errno;

절차식 형식

int mysqli_connect_errno ( void )

Returns the last error code number from the last call to mysqli_connect().

Note:

Client error message numbers are listed in the MySQL errmsg.h header file, server error message numbers are listed in mysqld_error.h. In the MySQL source distribution you can find a complete list of error messages and error numbers in the file Docs/mysqld_error.txt.

반환값

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

예제

Example #1 $mysqli->connect_errno example

객체 기반 형식

<?php
$mysqli = @new mysqli('localhost', 'fake_user', 'my_password', 'my_db');

if ($mysqli->connect_errno) {
    die('Connect Error: ' . $mysqli->connect_errno);
}
?>

절차식 형식

<?php
$link = @mysqli_connect('localhost', 'fake_user', 'my_password', 'my_db');

if (!$link) {
    die('Connect Error: ' . mysqli_connect_errno());
}
?>

위 예제들의 출력:

Connect Error: 1045

참고

mysqli
PHP Manual