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<!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>Get the current value for given option</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-get-option" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ldap_get_option</h1>
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<p class="verinfo">(PHP 4 >= 4.0.4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ldap_get_option</span> — <span class="dc-title">Get the current value for given option</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ldap-get-option-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_get_option</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link_identifier</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$option</code></span>
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, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$retval</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Sets <code class="parameter">retval</code> to the value of the specified option.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.ldap-get-option-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">option</code></dt>
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<dd>
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<p class="para">
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The parameter <code class="parameter">option</code> can be one of:
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>Option</th>
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<th>Type</th>
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<th>since</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><strong><code>LDAP_OPT_DEREF</code></strong></td>
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<td>integer</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_SIZELIMIT</code></strong></td>
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<td>integer</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_TIMELIMIT</code></strong></td>
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<td>integer</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_NETWORK_TIMEOUT</code></strong></td>
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<td>integer</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_PROTOCOL_VERSION</code></strong></td>
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<td>integer</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_ERROR_NUMBER</code></strong></td>
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<td>integer</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_DIAGNOSTIC_MESSAGE</code></strong></td>
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<td>integer</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_REFERRALS</code></strong></td>
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<td>bool</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_RESTART</code></strong></td>
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<td>bool</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_HOST_NAME</code></strong></td>
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<td>string</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_ERROR_STRING</code></strong></td>
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<td>string</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_MATCHED_DN</code></strong></td>
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<td>string</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_SERVER_CONTROLS</code></strong></td>
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<td>array</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_CLIENT_CONTROLS</code></strong></td>
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<td>array</td>
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<td class="empty"> </td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_KEEPALIVE_IDLE</code></strong></td>
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<td>int</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_KEEPALIVE_PROBES</code></strong></td>
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<td>int</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_KEEPALIVE_INTERVAL</code></strong></td>
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<td>int</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CACERTDIR</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CACERTFILE</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CERTFILE</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CIPHER_SUITE</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CRLCHECK</code></strong></td>
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<td>integer</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CRL_NONE</code></strong></td>
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<td>integer</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CRL_PEER</code></strong></td>
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<td>integer</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CRL_ALL</code></strong></td>
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<td>integer</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_CRLFILE</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_DHFILE</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_KEYILE</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_PACKAGE</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_PROTOCOL_MIN</code></strong></td>
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<td>integer</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_RANDOM_FILE</code></strong></td>
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<td>string</td>
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<td>7.1</td>
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</tr>
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<tr>
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<td><strong><code>LDAP_OPT_X_TLS_REQUIRE_CERT</code></strong></td>
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<td>integer</td>
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<td class="empty"> </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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</dd>
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<dt>
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<code class="parameter">retval</code></dt>
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<dd>
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<p class="para">
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This will be set to the option value.
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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-get-option-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.ldap-get-option-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-5400">
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<p><strong>Example #1 Check protocol version</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 /></span><span style="color: #FF8000">// $ds is a valid link identifier for a directory server<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">ldap_get_option</span><span style="color: #007700">(</span><span style="color: #0000BB">$ds</span><span style="color: #007700">, </span><span style="color: #0000BB">LDAP_OPT_PROTOCOL_VERSION</span><span style="color: #007700">, </span><span style="color: #0000BB">$version</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"Using protocol version </span><span style="color: #0000BB">$version</span><span style="color: #DD0000">\n"</span><span style="color: #007700">;<br />} else {<br /> echo </span><span style="color: #DD0000">"Unable to determine protocol version\n"</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-get-option-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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This function is only available when using OpenLDAP 2.x.x OR Netscape
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Directory SDK x.x.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.ldap-get-option-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="ldap_set_option.html" class="function" rel="rdfs-seeAlso">ldap_set_option()</a> - Set the value of the given option</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |