1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 322055 $ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.maxdb-change-user">
<refnamediv>
<refname>maxdb_change_user</refname>
<refname>maxdb::change_user</refname>
<refpurpose>Changes the user of the specified database connection</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<para>&style.procedural;</para>
<methodsynopsis>
<type>bool</type><methodname>maxdb_change_user</methodname>
<methodparam><type>resource</type><parameter>link</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>
</methodsynopsis>
<para>&style.oop;</para>
<methodsynopsis>
<type>bool</type><methodname>maxdb::change_user</methodname>
<methodparam><type>string</type><parameter>user</parameter></methodparam>
<methodparam><type>string</type><parameter>password</parameter></methodparam>
<methodparam><type>string</type><parameter>database</parameter></methodparam>
</methodsynopsis>
<para>
<function>maxdb_change_user</function> is used to change the user of the specified
database connection as given by the <parameter>link</parameter> parameter and to set the
current database to that specified by the <parameter>database</parameter> parameter.
</para>
<para>
In order to successfully change users a valid <parameter>username</parameter> and
<parameter>password</parameter> 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.
</para>
<note>
<para>
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.
</para>
</note>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title>&style.oop;</title>
<programlisting role="php">
<![CDATA[
<?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();
?>
]]>
</programlisting>
</example>
<example>
<title>&style.procedural;</title>
<programlisting role="php">
<![CDATA[
<?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);
?>
]]>
</programlisting>
</example>
&example.outputs.similar;
<screen>
<![CDATA[
Result: a
Database running
]]>
</screen>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>maxdb_connect</function></member>
<member><function>maxdb_select_db</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
|
