MaxDB PHP Функции
PHP Manual

maxdb_change_user

maxdb->change_user

(PECL maxdb:1.0-7.6.00.38)

maxdb->change_user — Changes the user of the specified database connection

Описание

Procedural style:

bool maxdb_change_user ( resource $link , string $user , string $password , string $database )

Object oriented style (method):

maxdb
bool change_user ( string $user , string $password , string $database )

maxdb_change_user() is used to change the user of the specified database connection as given by the link parameter and to set the current database to that specified by the database parameter.

In order to successfully change users a valid username and password parameters must be provided and that user must have sufficient permissions to access the desired database. If for any reason authorization fails, the current user authentication will remain.

Замечание: Using this command will always cause the current database connection to behave as if was a completely new database connection, regardless of if the operation was completed successfully. This reset includes performing a rollback on any active transactions, closing all temporary tables, and unlocking all locked tables.

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

Примеры

Пример #1 Object oriented style

<?php

/* connect database test */
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

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

if ($result = $maxdb->query("SELECT * FROM dual")) {
   $row = $result->fetch_row();
   printf("Result: %s\n", $row[0]);
   $result->free();
}

/* reset all and select a new database */
if (!$maxdb->change_user("DBADMIN", "SECRET", "DEMODB")) {
  printf("Database not running\n");
} else {
  printf("Database running\n");
}

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

Пример #2 Procedural style

<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (!$link) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

if ($result = maxdb_query($link, "SELECT * FROM dual")) {
   $row = maxdb_fetch_row($result);
   printf("Result: %s\n", $row[0]);
   maxdb_free_result($result);
}

/* reset all and select a new database */
if (!maxdb_change_user($link, "DBADMIN", "SECRET", "DEMODB")) {
  printf("Database not running\n");
} else {
  printf("Database running\n");
}

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

The above examples would produce the following output: 

Result: a
Database running

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