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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.ldap-compare" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>ldap_compare</refname>
<refpurpose>Compare value of attribute found in entry specified with DN</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type class="union"><type>bool</type><type>int</type></type><methodname>ldap_compare</methodname>
<methodparam><type>LDAP\Connection</type><parameter>ldap</parameter></methodparam>
<methodparam><type>string</type><parameter>dn</parameter></methodparam>
<methodparam><type>string</type><parameter>attribute</parameter></methodparam>
<methodparam><type>string</type><parameter>value</parameter></methodparam>
<methodparam choice="opt"><type class="union"><type>array</type><type>null</type></type><parameter>controls</parameter><initializer>&null;</initializer></methodparam>
</methodsynopsis>
<para>
Compare <parameter>value</parameter> of <parameter>attribute</parameter>
with value of same attribute in an LDAP directory entry.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>ldap</parameter></term>
<listitem>
<para>
&ldap.parameter.ldap;
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>dn</parameter></term>
<listitem>
<para>
The distinguished name of an LDAP entity.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>attribute</parameter></term>
<listitem>
<para>
The attribute name.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>value</parameter></term>
<listitem>
<para>
The compared value.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>controls</parameter></term>
<listitem>
<para>
Array of <link linkend="ldap.controls">LDAP Controls</link> to send with the request.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns &true; if <parameter>value</parameter> matches otherwise returns
&false;. Returns -1 on error.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
&ldap.changelog.ldap-object;
&ldap.changelog.controls-nullable;
<row>
<entry>7.3.0</entry>
<entry>
Support for <parameter>controls</parameter> added
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
The following example demonstrates how to check whether or not given password matches
the one defined in DN specified entry.
</para>
<para>
<example>
<title>Complete example of password check</title>
<programlisting role="php">
<![CDATA[
<?php
$ds=ldap_connect("localhost"); // assuming the LDAP server is on this host
if ($ds) {
// bind
if (ldap_bind($ds)) {
// prepare data
$dn = "cn=Matti Meikku, ou=My Unit, o=My Company, c=FI";
$value = "secretpassword";
$attr = "password";
// compare value
$r=ldap_compare($ds, $dn, $attr, $value);
if ($r === -1) {
echo "Error: " . ldap_error($ds);
} elseif ($r === true) {
echo "Password correct.";
} elseif ($r === false) {
echo "Wrong guess! Password incorrect.";
}
} else {
echo "Unable to bind to LDAP server.";
}
ldap_close($ds);
} else {
echo "Unable to connect to LDAP server.";
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<warning>
<para>
<function>ldap_compare</function> can NOT be used to compare BINARY values!
</para>
</warning>
</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
-->
|
