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56 lines
3.5 KiB
HTML
56 lines
3.5 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>返回当前线程的 ID</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.mysql-thread-id" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">mysql_thread_id</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_thread_id</span> — <span class="dc-title">返回当前线程的 ID</span></p>
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</div>
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<div class="refsect1 unknown-unknown-unknown-seealsr" id="refsect1-function.mysql-thread-id-unknown-unknown-unknown-seealsr">
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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>mysql_thread_id</strong></span>
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([ <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link_identifier</code></span>
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] ) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>mysql_thread_id()</strong></span>
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返回当前线程的
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ID。如果连接丢失了并用
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<span class="function"><a href="mysql_ping.html" class="function">mysql_ping()</a></span>
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重新连接上，线程 ID 会改变。这意味着不能取得线程的
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ID 后保存起来备用。当需要的时候再去获取之。
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</p>
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<p class="para">
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<div class="example" id="example-2171">
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<p><strong>Example #1 <span class="function"><strong>mysql_thread_id()</strong></span> 例子</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'localhost'</span><span style="color: #007700">, </span><span style="color: #DD0000">'mysql_user'</span><span style="color: #007700">, </span><span style="color: #DD0000">'mysql_password'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$thread_id </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_thread_id</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br />if (</span><span style="color: #0000BB">$thread_id</span><span style="color: #007700">){<br /> </span><span style="color: #0000BB">printf </span><span style="color: #007700">(</span><span style="color: #DD0000">"current thread id is %d\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$thread_id</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 class="example-contents"><p>
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以上例子将产生如下输出：
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</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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current thread id is 73
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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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<p class="para">
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参见
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<span class="function"><a href="mysql_ping.html" class="function">mysql_ping()</a></span> 和
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<span class="function"><a href="mysql_list_processes.html" class="function">mysql_list_processes()</a></span>。
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</p>
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</div>
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</div></div></div></body></html> |