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136 lines
7.4 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>Connect to an LDAP server</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-connect" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ldap_connect</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ldap_connect</span> — <span class="dc-title">Connect to an LDAP server</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ldap-connect-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_connect</strong></span>
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([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$host</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$port</code><span class="initializer"> = 389</span></span>
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]] ) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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Creates an LDAP link identifier and checks whether the given
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<code class="parameter">host</code> and <code class="parameter">port</code> are plausible.
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<span class="simpara">
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This function does <em class="emphasis">not</em> open a connection.
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It checks whether the given parameters are plausible and can be used
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to open a connection as soon as one is needed.
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</span>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.ldap-connect-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">host</code></dt>
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<dd>
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<p class="para">
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This field supports using a hostname or, with OpenLDAP 2.x.x and
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later, a full LDAP URI of the form <em>ldap://hostname:port</em>
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or <em>ldaps://hostname:port</em> for SSL encryption.
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</p>
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<p class="para">
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You can also provide multiple LDAP-URIs separated by a space as one string
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</p>
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<p class="para">
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Note that <em>hostname:port</em> is not a supported LDAP URI as the schema is missing.
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</p>
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</dd>
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<dt>
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<code class="parameter">port</code></dt>
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<dd>
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<p class="para">
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The port to connect to. Not used when using LDAP URIs.
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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-connect-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns a positive LDAP link identifier when the provided hostname/port combination or LDAP URI
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seems plausible. It's a syntactic check of the provided parameters but the server(s) will not
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be contacted! If the syntactic check fails it returns <strong><code>FALSE</code></strong>.
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When OpenLDAP 2.x.x is used, <span class="function"><strong>ldap_connect()</strong></span> will always
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return a <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span> as it does not actually connect but just
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initializes the connecting parameters. The actual connect happens with
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the next calls to ldap_* funcs, usually with
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<span class="function"><a href="ldap_bind.html" class="function">ldap_bind()</a></span>.
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</p>
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<p class="para">
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If no arguments are specified then the link identifier of the already
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opened link will be returned.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.ldap-connect-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-5389">
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<p><strong>Example #1 Example of connecting to LDAP server.</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 /></span><span style="color: #FF8000">// LDAP variables<br /></span><span style="color: #0000BB">$ldaphost </span><span style="color: #007700">= </span><span style="color: #DD0000">"ldap.example.com"</span><span style="color: #007700">; </span><span style="color: #FF8000">// your ldap servers<br /></span><span style="color: #0000BB">$ldapport </span><span style="color: #007700">= </span><span style="color: #0000BB">389</span><span style="color: #007700">; </span><span style="color: #FF8000">// your ldap server's port number<br /><br />// Connecting to LDAP<br /></span><span style="color: #0000BB">$ldapconn </span><span style="color: #007700">= </span><span style="color: #0000BB">ldap_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$ldaphost</span><span style="color: #007700">, </span><span style="color: #0000BB">$ldapport</span><span style="color: #007700">)<br /> or die(</span><span style="color: #DD0000">"Could not connect to </span><span style="color: #0000BB">$ldaphost</span><span style="color: #DD0000">"</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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<div class="example" id="example-5390">
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<p><strong>Example #2 Example of connecting securely to LDAP server.</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 /></span><span style="color: #FF8000">// make sure your host is the correct one<br />// that you issued your secure certificate to<br /></span><span style="color: #0000BB">$ldaphost </span><span style="color: #007700">= </span><span style="color: #DD0000">"ldaps://ldap.example.com/"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// Connecting to LDAP<br /></span><span style="color: #0000BB">$ldapconn </span><span style="color: #007700">= </span><span style="color: #0000BB">ldap_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$ldaphost</span><span style="color: #007700">)<br /> or die(</span><span style="color: #DD0000">"Could not connect to </span><span style="color: #007700">{</span><span style="color: #0000BB">$ldaphost</span><span style="color: #007700">}</span><span style="color: #DD0000">"</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 seealso" id="refsect1-function.ldap-connect-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_bind.html" class="function" rel="rdfs-seeAlso">ldap_bind()</a> - 绑定 LDAP 目录</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> |