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<refentry xml:id="function.mysql-change-user" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>mysql_change_user</refname>
  <refpurpose>Change logged in user of the active connection</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>mysql_change_user</methodname>
   <methodparam><type>string</type><parameter>user</parameter></methodparam>
   <methodparam><type>string</type><parameter>password</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>database</parameter></methodparam>
   <methodparam choice="opt"><type>resource</type><parameter>link_identifier</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>mysql_change_user</function> changes the logged in user
   of the current active connection, or the connection given by the
   optional <parameter>link_identifier</parameter> parameter. If a
   database is specified, this will be the current database after
   the user has been changed. If the new user and password
   authorization fails, the current connected user stays active.
  </para>
  <para>
   This function is deprecated and no longer exists in PHP.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>user</parameter></term>
     <listitem>
      <para>
       The new MySQL username.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>password</parameter></term>
     <listitem>
      <para>
       The new MySQL password.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>database</parameter></term>
     <listitem>
      <para>
       The MySQL database. If not specified, the current selected database
       is used.
      </para>
     </listitem>
    </varlistentry>
    &mysql.linkid.description;
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  <note>
   <title>Requirements</title>
   <para>
    This function requires MySQL 3.23.3 or higher.
   </para>
  </note>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>mysql_connect</function></member>
    <member><function>mysql_select_db</function></member>
    <member><function>mysql_query</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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