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mysqli_connect_errno

(PHP 5)

mysqli_connect_errno -- Returns the error code from last connect call

说明

int mysqli_connect_errno ( void )

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

注意: 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.

返回值

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

范例

例 1. mysqli_connect_errno() example

<?php

$link = @mysqli_connect("localhost", "nonexisting_user", "");

if (!$link) {
    printf("Can't connect to localhost. Errorcode: %d\n", mysqli_connect_errno());
}
?>

参见

mysqli_connect()
mysqli_connect_error()
mysqli_errno()
mysqli_error()
mysqli_sqlstate()

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