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94 lines
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94 lines
9.5 KiB
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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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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Returns the thread ID for the current connection</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.maxdb-thread-id" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">maxdb_thread_id</h1>
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<h1 class="refname">maxdb::thread_id</h1>
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<p class="verinfo">(PECL maxdb >= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_thread_id</span> -- <span class="refname">maxdb::thread_id</span> — <span class="dc-title">Returns the thread ID for the current connection</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.maxdb-thread-id-description">
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<h3 class="title">说明</h3>
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<p class="para">过程化风格</p>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>maxdb_thread_id</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link</code></span>
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) : <span class="type">int</span></div>
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<p class="para rdfs-comment">面向对象风格</p>
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<div class="fieldsynopsis"><span class="type">int</span> <var class="varname">$maxdb->thread_id</var>;</div>
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<p class="para">
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The <span class="function"><strong>maxdb_thread_id()</strong></span> function returns the thread
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ID for the current connection which can then be killed using the
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<span class="function"><a href="maxdb_kill.html" class="function">maxdb_kill()</a></span> function. If the connection is lost
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and you reconnect with <span class="function"><a href="maxdb_ping.html" class="function">maxdb_ping()</a></span>, the thread ID
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will be other. Therefore you should get the thread ID only when you need it.
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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The thread ID is assigned on a connection-by-connection basis. Hence,
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if the connection is broken and then re-established a new thread ID
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will be assigned.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.maxdb-thread-id-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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<span class="function"><strong>maxdb_thread_id()</strong></span> returns the Thread ID for the current connection.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.maxdb-thread-id-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1437">
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<p><strong>Example #1 面向对象风格</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 />$maxdb </span><span style="color: #007700">= new </span><span style="color: #0000BB">maxdb</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #FF8000">/* determine our thread id */<br /></span><span style="color: #0000BB">$thread_id </span><span style="color: #007700">= </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">thread_id</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/* Kill connection */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">kill</span><span style="color: #007700">(</span><span style="color: #0000BB">$thread_id</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* This should produce an error */<br /></span><span style="color: #007700">if (!</span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE TABLE mycity LIKE hotel.city"</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Error: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">error</span><span style="color: #007700">);<br /> exit;<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<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-1438">
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<p><strong>Example #2 过程化风格</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 />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #FF8000">/* determine our thread id */<br /></span><span style="color: #0000BB">$thread_id </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_thread_id</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Kill connection */<br /></span><span style="color: #0000BB">maxdb_kill</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #0000BB">$thread_id</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* This should produce an error */<br /></span><span style="color: #007700">if (!</span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"CREATE TABLE mycity LIKE hotel.city"</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Error: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_error</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">));<br /> exit;<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<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 class="para">以上例程的输出类似于：</p>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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Warning: maxdb_query(): -10821 Session not connected <...>
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Error: Session not connected
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</pre></div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.maxdb-thread-id-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="maxdb_kill.html" class="function" rel="rdfs-seeAlso">maxdb_kill()</a> - Disconnects from a MaxDB server</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> |