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173 lines
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HTML
173 lines
9.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Compare value of attribute found in entry specified with DN</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.ldap-compare" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ldap_compare</h1>
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<p class="verinfo">(PHP 4 >= 4.0.2, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ldap_compare</span> — <span class="dc-title">Compare value of attribute found in entry specified with DN</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ldap-compare-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>ldap_compare</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link_identifier</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$dn</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$attribute</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$value</code></span>
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[, <span class="methodparam"><span class="type">array</span> <code class="parameter">$serverctrls</code><span class="initializer"> = array()</span></span>
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] ) : <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span></div>
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<p class="para rdfs-comment">
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Compare <code class="parameter">value</code> of <code class="parameter">attribute</code>
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with value of same attribute in an LDAP directory entry.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.ldap-compare-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">link_identifier</code></dt>
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<dd>
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<p class="para">
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An LDAP link identifier, returned by <span class="function"><a href="ldap_connect.html" class="function">ldap_connect()</a></span>.
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</p>
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</dd>
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<dt>
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<code class="parameter">dn</code></dt>
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<dd>
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<p class="para">
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The distinguished name of an LDAP entity.
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</p>
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</dd>
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<dt>
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<code class="parameter">attribute</code></dt>
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<dd>
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<p class="para">
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The attribute name.
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</p>
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</dd>
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<dt>
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<code class="parameter">value</code></dt>
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<dd>
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<p class="para">
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The compared value.
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</p>
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</dd>
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<dt>
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<code class="parameter">serverctrls</code></dt>
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<dd>
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<p class="para">
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Array of <a href="ldap.controls.html" class="link">LDAP Controls</a> to send with the request.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.ldap-compare-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns <strong><code>TRUE</code></strong> if <code class="parameter">value</code> matches otherwise returns
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<strong><code>FALSE</code></strong>. Returns -1 on error.
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.ldap-compare-changelog">
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<h3 class="title">更新日志</h3>
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<p class="para">
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>7.3</td>
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<td>
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Support for <code class="parameter">serverctrls</code> added
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.ldap-compare-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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The following example demonstrates how to check whether or not given password matches
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the one defined in DN specified entry.
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</p>
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<p class="para">
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<div class="example" id="example-5388">
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<p><strong>Example #1 Complete example of password check</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /><br />$ds</span><span style="color: #007700">=</span><span style="color: #0000BB">ldap_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">); </span><span style="color: #FF8000">// assuming the LDAP server is on this host<br /><br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">$ds</span><span style="color: #007700">) {<br /><br /> </span><span style="color: #FF8000">// bind<br /> </span><span style="color: #007700">if (</span><span style="color: #0000BB">ldap_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$ds</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #FF8000">// prepare data<br /> </span><span style="color: #0000BB">$dn </span><span style="color: #007700">= </span><span style="color: #DD0000">"cn=Matti Meikku, ou=My Unit, o=My Company, c=FI"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$value </span><span style="color: #007700">= </span><span style="color: #DD0000">"secretpassword"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$attr </span><span style="color: #007700">= </span><span style="color: #DD0000">"password"</span><span style="color: #007700">;<br /><br /> </span><span style="color: #FF8000">// compare value<br /> </span><span style="color: #0000BB">$r</span><span style="color: #007700">=</span><span style="color: #0000BB">ldap_compare</span><span style="color: #007700">(</span><span style="color: #0000BB">$ds</span><span style="color: #007700">, </span><span style="color: #0000BB">$dn</span><span style="color: #007700">, </span><span style="color: #0000BB">$attr</span><span style="color: #007700">, </span><span style="color: #0000BB">$value</span><span style="color: #007700">);<br /><br /> if (</span><span style="color: #0000BB">$r </span><span style="color: #007700">=== -</span><span style="color: #0000BB">1</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"Error: " </span><span style="color: #007700">. </span><span style="color: #0000BB">ldap_error</span><span style="color: #007700">(</span><span style="color: #0000BB">$ds</span><span style="color: #007700">);<br /> } elseif (</span><span style="color: #0000BB">$r </span><span style="color: #007700">=== </span><span style="color: #0000BB">true</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"Password correct."</span><span style="color: #007700">;<br /> } elseif (</span><span style="color: #0000BB">$r </span><span style="color: #007700">=== </span><span style="color: #0000BB">false</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"Wrong guess! Password incorrect."</span><span style="color: #007700">;<br /> }<br /><br /> } else {<br /> echo </span><span style="color: #DD0000">"Unable to bind to LDAP server."</span><span style="color: #007700">;<br /> }<br /><br /> </span><span style="color: #0000BB">ldap_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$ds</span><span style="color: #007700">);<br /><br />} else {<br /> echo </span><span style="color: #DD0000">"Unable to connect to LDAP server."</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.ldap-compare-notes">
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<h3 class="title">注释</h3>
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<div class="warning"><strong class="warning">Warning</strong>
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<p class="para">
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<span class="function"><strong>ldap_compare()</strong></span> can NOT be used to compare BINARY values!
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</p>
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</div>
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</div>
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</div></div></div></body></html> |