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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 327381 $ -->
<refentry xml:id="mysqlnduhconnection.changeuser" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>MysqlndUhConnection::changeUser</refname>
<refpurpose>Changes the user of the specified mysqlnd database connection</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>bool</type><methodname>MysqlndUhConnection::changeUser</methodname>
<methodparam><type>mysqlnd_connection</type><parameter>connection</parameter></methodparam>
<methodparam><type>string</type><parameter>user</parameter></methodparam>
<methodparam><type>string</type><parameter>password</parameter></methodparam>
<methodparam><type>string</type><parameter>database</parameter></methodparam>
<methodparam><type>bool</type><parameter>silent</parameter></methodparam>
<methodparam><type>int</type><parameter>passwd_len</parameter></methodparam>
</methodsynopsis>
<para>
Changes the user of the specified mysqlnd database connection
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>connection</parameter></term>
<listitem>
<para>
Mysqlnd connection handle. Do not modify!
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>user</parameter></term>
<listitem>
<para>
The MySQL user name.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>password</parameter></term>
<listitem>
<para>
The MySQL password.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>database</parameter></term>
<listitem>
<para>
The MySQL database to change to.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>silent</parameter></term>
<listitem>
<para>
Controls if mysqlnd is allowed to emit errors or not.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>passwd_len</parameter></term>
<listitem>
<para>
Length of the MySQL password.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns &true; on success.
Otherwise, returns &false;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>MysqlndUhConnection::changeUser</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
class proxy extends MysqlndUhConnection {
/* Hook mysqlnd's connection::change_user call */
public function changeUser($res, $user, $passwd, $db, $silent, $passwd_len) {
printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));
$ret = parent::changeUser($res, $user, $passwd, $db, $silent, $passwd_len);
printf("%s returns %s\n", __METHOD__, var_export($ret, true));
return $ret;
}
}
/* Install proxy/hooks to be used with all future mysqlnd connection */
mysqlnd_uh_set_connection_proxy(new proxy());
/* Create mysqli connection which is using the mysqlnd library */
$mysqli = new mysqli("localhost", "root", "", "test");
/* Example of a user API call which triggers the hooked mysqlnd call */
var_dump($mysqli->change_user("root", "bar", "test"));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
proxy::changeUser(array (
0 => NULL,
1 => 'root',
2 => 'bar',
3 => 'test',
4 => false,
5 => 3,
))
proxy::changeUser returns false
bool(false)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member>
<function>mysqlnd_uh_set_connection_proxy</function>
</member>
<member>
<function>mysqli_change_user</function>
</member>
</simplelist>
</para>
</refsect1>
</refentry>
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