📄 function.apc-store.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Cache a variable in the data store</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.apc.html">APC Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="book.apd.html">APD</a></div> <div class="up"><a href="ref.apc.html">APC Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.apc-store" class="refentry"> <div class="refnamediv"> <h1 class="refname">apc_store</h1> <p class="verinfo">(PECL apc:3.0.0-3.0.9)</p><p class="refpurpose"><span class="refname">apc_store</span> — <span class="dc-title"> Cache a variable in the data store </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>apc_store</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$key</tt></span> , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <tt class="parameter">$var</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$ttl</tt></span> ] )</div> <p class="para rdfs-comment"> Cache a variable in the data store. </p> <blockquote><p><b class="note">Note</b>: <span class="simpara"> Unlike many other mechanisms in PHP, variables stored using <b>apc_store()</b> will persist between requests (until the value is removed from the cache). </span> </p></blockquote> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">key</tt></i></span> <dd> <p class="para"> Store the variable using this name. <i><tt class="parameter">key</tt></i>s are cache-unique, so storing a second value with the same <i><tt class="parameter">key</tt></i> will overwrite the original value. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">var</tt></i></span> <dd> <p class="para"> The variable to store </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">ttl</tt></i></span> <dd> <p class="para"> Time To Live; store <i><tt class="parameter">var</tt></i> in the cache for <i><tt class="parameter">ttl</tt></i> seconds. After the <i><tt class="parameter">ttl</tt></i> has passed, the stored variable will be expunged from the cache (on the next request). If no <i><tt class="parameter">ttl</tt></i> is supplied (or if the <i><tt class="parameter">ttl</tt></i> is <i>0</i>), the value will persist until it is removed from the cache manually, or otherwise fails to exist in the cache (clear, restart, etc.). </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 A <b>apc_store()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$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></span></code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>string(3) "BAR"</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.apc-add.html" class="function" rel="rdfs-seeAlso">apc_add()</a></li> <li class="member"><a href="function.apc-fetch.html" class="function" rel="rdfs-seeAlso">apc_fetch()</a></li> <li class="member"><a href="function.apc-delete.html" class="function" rel="rdfs-seeAlso">apc_delete()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.apc.html">APC Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="book.apd.html">APD</a></div> <div class="up"><a href="ref.apc.html">APC Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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