MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli::$errno
mysqli_errno
Returns the error code for the most recent function call
Object oriented style
int mysqli->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
.
link
Procedural style only: A link identifier returned by
mysqli_connect
or
mysqli_init
An error code value for the last call, if it failed. zero means no error occurred.
Example 3.41 $mysqli->errno
example
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(); ?>
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); ?>
The above examples will output:
Errorcode: 1193
mysqli_connect_errno
|
mysqli_connect_error
|
mysqli_error
|
mysqli_sqlstate
|