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209 lines
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HTML
209 lines
9.9 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>Retrieves information about data stored in the user cache</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.wincache-ucache-info" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">wincache_ucache_info</h1>
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<p class="verinfo">(PECL wincache >= 1.1.0)</p><p class="refpurpose"><span class="refname">wincache_ucache_info</span> — <span class="dc-title">
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Retrieves information about data stored in the user cache
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.wincache-ucache-info-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>wincache_ucache_info</strong></span>
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([ <span class="methodparam"><span class="type">bool</span> <code class="parameter">$summaryonly</code><span class="initializer"> = <strong><code>FALSE</code></strong></span></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$key</code><span class="initializer"> = NULL</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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Retrieves information about data stored in the user cache.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.wincache-ucache-info-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">summaryonly</code></dt>
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<dd>
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<p class="para">
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Controls whether the returned array will contain information about individual cache entries
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along with the user cache summary.
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</p>
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</dd>
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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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The key of an entry in the user cache. If specified then the returned array will contain information
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only about that cache entry. If not specified and <code class="parameter">summaryonly</code> is set to
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<strong><code>FALSE</code></strong> then the returned array will contain information about all entries in the cache.
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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.wincache-ucache-info-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Array of meta data about user cache 或者在失败时返回 <strong><code>FALSE</code></strong>
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</p>
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<p class="para">
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The array returned by this function contains the following elements:
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<ul class="itemizedlist">
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<li class="listitem">
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<span class="simpara">
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<em>total_cache_uptime</em> - total time in seconds that the user cache has been active
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>total_item_count</em> - total number of elements that are currently in the user cache
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>is_local_cache</em> - true is the cache metadata is for a local cache instance,
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false if the metadata is for the global cache
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>total_hit_count</em> - number of times the data has been served from the cache
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>total_miss_count</em> - number of times the data has not been found in the cache
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</span>
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</li>
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<li class="listitem">
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<p class="para">
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<em>ucache_entries</em> - an array that contains the information about all the cached items:
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<ul class="itemizedlist">
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<li class="listitem">
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<span class="simpara">
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<em>key_name</em> - name of the key which is used to store the data
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>value_type</em> - type of value stored by the key
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>use_time</em> - time in seconds since the file has been accessed in the opcode cache
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>last_check</em> - time in seconds since the file has been checked for modifications
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>is_session</em> - indicates if the data is a session variable
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>ttl_seconds</em> - time remaining for the data to live in the cache, 0 meaning infinite
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>age_seconds</em> - time elapsed from the time data has been added in the cache
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<em>hitcount</em> - number of times data has been served from the cache
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</span>
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</li>
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</ul>
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</p>
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</li>
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</ul>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.wincache-ucache-info-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-632">
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<p><strong>Example #1 Using <span class="function"><strong>wincache_ucache_info()</strong></span></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 />wincache_ucache_get</span><span style="color: #007700">(</span><span style="color: #DD0000">'green'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">wincache_ucache_set</span><span style="color: #007700">(</span><span style="color: #DD0000">'green'</span><span style="color: #007700">, </span><span style="color: #0000BB">2922</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">wincache_ucache_get</span><span style="color: #007700">(</span><span style="color: #DD0000">'green'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">wincache_ucache_get</span><span style="color: #007700">(</span><span style="color: #DD0000">'green'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">wincache_ucache_get</span><span style="color: #007700">(</span><span style="color: #DD0000">'green'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">wincache_ucache_info</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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Array
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( ["total_cache_uptime"] => int(0)
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["is_local_cache"] => bool(false)
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["total_item_count"] => int(1)
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["total_hit_count"] => int(3)
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["total_miss_count"] => int(1)
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["ucache_entries"] => Array(1)
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( [1] => Array(6)
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(
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["key_name"] => string(5) "green"
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["value_type"] => string(4) "long"
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["is_session"] => int(0)
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["ttl_seconds"] => int(0)
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["age_seconds"] => int(0)
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["hitcount"] => int(3)
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)
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)
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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 class="refsect1 seealso" id="refsect1-function.wincache-ucache-info-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="wincache_fcache_meminfo.html" class="function" rel="rdfs-seeAlso">wincache_fcache_meminfo()</a> - Retrieves information about file cache memory usage</span></li>
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<li class="member"><span class="function"><a href="wincache_ocache_fileinfo.html" class="function" rel="rdfs-seeAlso">wincache_ocache_fileinfo()</a> - Retrieves information about files cached in the opcode cache</span></li>
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<li class="member"><span class="function"><a href="wincache_ocache_meminfo.html" class="function" rel="rdfs-seeAlso">wincache_ocache_meminfo()</a> - Retrieves information about opcode cache memory usage</span></li>
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<li class="member"><span class="function"><a href="wincache_rplist_meminfo.html" class="function" rel="rdfs-seeAlso">wincache_rplist_meminfo()</a> - Retrieves information about memory usage by the resolve file path cache</span></li>
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<li class="member"><span class="function"><a href="wincache_rplist_fileinfo.html" class="function" rel="rdfs-seeAlso">wincache_rplist_fileinfo()</a> - Retrieves information about resolve file path cache</span></li>
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<li class="member"><span class="function"><a href="wincache_refresh_if_changed.html" class="function" rel="rdfs-seeAlso">wincache_refresh_if_changed()</a> - Refreshes the cache entries for the cached files</span></li>
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<li class="member"><span class="function"><a href="wincache_ucache_meminfo.html" class="function" rel="rdfs-seeAlso">wincache_ucache_meminfo()</a> - Retrieves information about user cache memory usage</span></li>
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<li class="member"><span class="function"><a href="wincache_scache_info.html" class="function" rel="rdfs-seeAlso">wincache_scache_info()</a> - Retrieves information about files cached in the session cache</span></li>
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<li class="member"><span class="function"><a href="wincache_scache_meminfo.html" class="function" rel="rdfs-seeAlso">wincache_scache_meminfo()</a> - Retrieves information about session cache memory usage</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> |