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65 lines
3.5 KiB
HTML
65 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>取得当前系统状态</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-stat" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">mysql_stat</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_stat</span> — <span class="dc-title">取得当前系统状态</span></p>
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</div>
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<div class="refsect1 unknown-seealsp" id="refsect1-function.mysql-stat-unknown-seealsp">
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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_stat</strong></span>
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([ <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link_identifier</code></span>
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] ) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>mysql_stat()</strong></span> 返回当前服务器状态。
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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<span class="function"><strong>mysql_stat()</strong></span>
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目前只返回
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uptime，threads，queries，open tables，flush tables 和 queries per
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second。要得到其它状态变量的完整列表，只能使用 SQL 命令
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SHOW STATUS。
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</p>
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</p></blockquote>
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<p class="para">
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<div class="example" id="example-2169">
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<p><strong>Example #1 <span class="function"><strong>mysql_stat()</strong></span> 例子</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$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">$status </span><span style="color: #007700">= </span><span style="color: #0000BB">explode</span><span style="color: #007700">(</span><span style="color: #DD0000">' '</span><span style="color: #007700">, </span><span style="color: #0000BB">mysql_stat</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$status</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 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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Array
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(
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[0] => Uptime: 5380
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[1] => Threads: 2
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[2] => Questions: 1321299
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[3] => Slow queries: 0
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[4] => Opens: 26
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[5] => Flush tables: 1
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[6] => Open tables: 17
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[7] => Queries per second avg: 245.595
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)
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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></div></div></body></html> |