📄 function.apc-cache-info.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>Retrieves cached information from APC's 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="function.apc-add.html">apc_add</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.apc-clear-cache.html">apc_clear_cache</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-cache-info" class="refentry"> <div class="refnamediv"> <h1 class="refname">apc_cache_info</h1> <p class="verinfo">(PECL apc:2.0-3.0.9)</p><p class="refpurpose"><span class="refname">apc_cache_info</span> — <span class="dc-title"> Retrieves cached information from APC's data store </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><b><b>apc_cache_info</b></b></span> ([ <span class="methodparam"><span class="type">string</span> <tt class="parameter">$cache_type</tt></span> [, <span class="methodparam"><span class="type">bool</span> <tt class="parameter">$limited</tt></span> ]] )</div> <p class="para rdfs-comment"> Retrieves cached information and meta-data from APC's data store. </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Array of cached data (and meta-data), or <b><tt>FALSE</tt></b> on failure </p> <blockquote><p><b class="note">Note</b>: <span class="simpara"> <b>apc_cache_info()</b> will raise a warning if it is unable to retrieve APC cache data. This typically occurs when APC is not enabled. </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">cache_type</tt></i></span> <dd> <p class="para"> If <i><tt class="parameter">cache_type</tt></i> is "<i>user</i>", information about the user cache will be returned. </p> <p class="para"> If <i><tt class="parameter">cache_type</tt></i> is "<i>filehits</i>", information about which files have been served from the bytecode cache for the current request will be returned. This feature must be enabled at compile time using <span class="option">--enable-filehits</span>. </p> <p class="para"> If an invalid or no <i><tt class="parameter">cache_type</tt></i> is specified, information about the system cache (cached files) will be returned. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">limited</tt></i></span> <dd> <p class="para"> If <i><tt class="parameter">limited</tt></i> is <b><tt>TRUE</tt></b>, the return value will exclude the individual list of cache entries. This is usefull when trying to optimize calls for statistics gathering. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 changelog"> <h3 class="title">ChangeLog</h3> <p class="para"> <table class="informaltable"> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Version</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">3.0.11</td> <td colspan="1" rowspan="1" align="left"> The <i><tt class="parameter">limited</tt></i> parameter was introduced. </td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">3.0.16</td> <td colspan="1" rowspan="1" align="left"> The "<i>filehits</i>" option for the <i><tt class="parameter">cache_type</tt></i> parameter was introduced. </td> </tr> </tbody> </colgroup> </table> </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 A <b>apc_cache_info()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">apc_cache_info</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 something similar to:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>Array( [num_slots] => 2000 [ttl] => 0 [num_hits] => 9 [num_misses] => 3 [start_time] => 1123958803 [cache_list] => Array ( [0] => Array ( [filename] => /path/to/apc_test.php [device] => 29954 [inode] => 1130511 [type] => file [num_hits] => 1 [mtime] => 1123960686 [creation_time] => 1123960696 [deletion_time] => 0 [access_time] => 1123962864 [ref_count] => 1 [mem_size] => 677 ) [1] => Array (...iterates for each cached file))</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="apc.configuration.html" class="link">APC configuration directives</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.apc-add.html">apc_add</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.apc-clear-cache.html">apc_clear_cache</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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