MySQLi
PHP Manual

mysqli->errno

mysqli_errno

(PHP 5)

mysqli->errno -- mysqli_errnoReturns the error code for the most recent function call

Описание

Object oriented style (property):

int $errno;

Procedural style:

int mysqli_errno ( mysqli $link )

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

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.

Параметри

link

Само за процедурния стил: Идентификатор на връзката върнат от mysqli_connect() или mysqli_init()

Връщани стойности

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

Примери

Example #1 Object oriented style

<?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("Errorcode: %d\n"$mysqli->errno);
}

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

Example #2 Procedural style

<?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("Errorcode: %d\n"mysqli_errno($link));
}

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

Примерът по-горе ще изведе:

Errorcode: 1193

Вж. също


MySQLi
PHP Manual