mysqli::$error

mysqli_error

(PHP 5)

mysqli::$error -- mysqli_error — Returns a string description of the last error

설명

객체 기반 형식

string $mysqli->error;

절차식 형식

string mysqli_error ( mysqli $link )

Returns the last error message for the most recent MySQLi function call that can succeed or fail.

인수

link: 순차 형식 전용: mysqli_connect()나 mysqli_init()가 반환한 연결 식별자.

반환값

A string that describes the error. An empty string if no error occurred.

예제

Example #1 $mysqli->error example

객체 기반 형식


<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

/* check connection */
if ($mysqli->connect_errno) {
    printf("Connect failed: %s\n", $mysqli->connect_error);
    exit();
}

if (!$mysqli->query("SET a=1")) {
    printf("Errormessage: %s\n", $mysqli->error);
}

/* close connection */
$mysqli->close();
?>

절차식 형식


<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

if (!mysqli_query($link, "SET a=1")) {
    printf("Errormessage: %s\n", mysqli_error($link));
}

/* close connection */
mysqli_close($link);
?>

위 예제들의 출력:

Errormessage: Unknown system variable 'a'

참고

mysqli_connect_errno() - Returns the error code from last connect call
mysqli_connect_error() - Returns a string description of the last connect error
mysqli_errno() - Returns the error code for the most recent function call
mysqli_sqlstate() - Returns the SQLSTATE error from previous MySQL operation