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150 lines
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HTML
150 lines
6.0 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>Cache a variable in the data store</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.apc-store" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">apc_store</h1>
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<p class="verinfo">(PECL apc >= 3.0.0)</p><p class="refpurpose"><span class="refname">apc_store</span> — <span class="dc-title">
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Cache a variable in the data store
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.apc-store-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>apc_store</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$key</code></span>
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, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$var</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$ttl</code><span class="initializer"> = 0</span></span>
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] ) : <span class="type">bool</span></div>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>apc_store</strong></span>
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( <span class="methodparam"><span class="type">array</span> <code class="parameter">$values</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">$unused</code><span class="initializer"> = NULL</span></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$ttl</code><span class="initializer"> = 0</span></span>
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]] ) : <span class="type">array</span></div>
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<p class="para rdfs-comment">
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缓存一个变量到APC中
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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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与PHP中其他的机制不同，使用<span class="function"><strong>apc_store()</strong></span> 存储的变量
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在不同的请求之间一直持久存在（直到从缓存系统中移除）。
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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.apc-store-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">key</code></dt>
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<dd>
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<p class="para">
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存储缓存变量使用的名称.<code class="parameter">key</code>是唯一的，所以
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两个值使用同一个 <code class="parameter">key</code>，原来的将被新的值覆盖。
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</p>
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</dd>
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<dt>
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<code class="parameter">var</code></dt>
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<dd>
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<p class="para">
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The variable to store
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</p>
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</dd>
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<dt>
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<code class="parameter">ttl</code></dt>
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<dd>
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<p class="para">
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生存时间;在缓存中存储<code class="parameter">var</code>共<code class="parameter">ttl</code>秒,
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在<code class="parameter">ttl</code>秒过去后,存储的变量将会从缓存中擦除(在下一次请求时),
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如果没有设置<code class="parameter">ttl</code>(或者<code class="parameter">ttl</code>是<em>0</em>),
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变量将一直存活到被手动移除为止,除此之外不在缓存中的可能原因是，
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缓存系统使用clear，或者restart等。
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</p>
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</dd>
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<dt>
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<code class="parameter">values</code></dt>
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<dd>
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<p class="para">
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Names in key, variables in 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.apc-store-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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Second syntax returns array with error keys.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.apc-store-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-411">
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<p><strong>Example #1 <span class="function"><strong>apc_store()</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 />$bar </span><span style="color: #007700">= </span><span style="color: #DD0000">'BAR'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">apc_store</span><span style="color: #007700">(</span><span style="color: #DD0000">'foo'</span><span style="color: #007700">, </span><span style="color: #0000BB">$bar</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">apc_fetch</span><span style="color: #007700">(</span><span style="color: #DD0000">'foo'</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>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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string(3) "BAR"
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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.apc-store-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="apc_add.html" class="function" rel="rdfs-seeAlso">apc_add()</a> - 缓存一个变量到数据存储</span></li>
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<li class="member"><span class="function"><a href="apc_fetch.html" class="function" rel="rdfs-seeAlso">apc_fetch()</a> - 从缓存中取出存储的变量</span></li>
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<li class="member"><span class="function"><a href="apc_delete.html" class="function" rel="rdfs-seeAlso">apc_delete()</a> - 从用户缓存中删除某个变量</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> |