memcache.ini.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>Runtime Configuration</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="memcache.installation.html">Installation</a></div> <div class="next" style="text-align: right; float: right;"><a href="memcache.resources.html">Resource Types</a></div> <div class="up"><a href="memcache.setup.html">Installing/Configuring</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="memcache.ini" class="section"> <h2 class="title">Runtime Configuration</h2> <p class="simpara">The behaviour of these functions is affected by settings in <var class="filename">php.ini</var>.</p> <p class="para"> <table border="5"> <caption><b>Memcache Configuration Options</b></caption> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Name</th> <th colspan="1">Default</th> <th colspan="1">Changeable</th> <th colspan="1">Changelog</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">memcache.allow_failover</td> <td colspan="1" rowspan="1" align="left">"1"</td> <td colspan="1" rowspan="1" align="left">PHP_INI_ALL</td> <td colspan="1" rowspan="1" align="left">Available since memcache 2.0.2.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">memcache.max_failover_attempts</td> <td colspan="1" rowspan="1" align="left">"20"</td> <td colspan="1" rowspan="1" align="left">PHP_INI_ALL</td> <td colspan="1" rowspan="1" align="left">Available since memcache 2.1.0.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">memcache.chunk_size</td> <td colspan="1" rowspan="1" align="left">"8192"</td> <td colspan="1" rowspan="1" align="left">PHP_INI_ALL</td> <td colspan="1" rowspan="1" align="left">Available since memcache 2.0.2.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">memcache.default_port</td> <td colspan="1" rowspan="1" align="left">"11211"</td> <td colspan="1" rowspan="1" align="left">PHP_INI_ALL</td> <td colspan="1" rowspan="1" align="left">Available since memcache 2.0.2.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">memcache.hash_strategy</td> <td colspan="1" rowspan="1" align="left">"standard"</td> <td colspan="1" rowspan="1" align="left">PHP_INI_ALL</td> <td colspan="1" rowspan="1" align="left">Available since memcache 2.2.0.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">memcache.hash_function</td> <td colspan="1" rowspan="1" align="left">"crc32"</td> <td colspan="1" rowspan="1" align="left">PHP_INI_ALL</td> <td colspan="1" rowspan="1" align="left">Available since memcache 2.2.0.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">session.save_handler</td> <td colspan="1" rowspan="1" align="left">"files"</td> <td colspan="1" rowspan="1" align="left">PHP_INI_ALL</td> <td colspan="1" rowspan="1" align="left">Supported since memcache 2.1.2</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">session.save_path</td> <td colspan="1" rowspan="1" align="left">""</td> <td colspan="1" rowspan="1" align="left">PHP_INI_ALL</td> <td colspan="1" rowspan="1" align="left">Supported since memcache 2.1.2</td> </tr> </tbody> </colgroup> </table> For further details and definitions of the PHP_INI_* constants, see the <a href="ini.html" class="xref">php.ini directives</a>. </p><p class="para">Here's a short explanation ofthe configuration directives.</p><p class="para"> <dl> <dt id="ini.memcache.allow-failover"> <span class="term"> <i><tt class="parameter">memcache.allow_failover</tt></i> <a href="language.types.boolean.html" class="type boolean">boolean</a> </span> <dd> <p class="para"> Whether to transparently failover to other servers on errors. </p> </dd> </dt> <dt id="ini.memcache.max-failover-attempts"> <span class="term"> <i><tt class="parameter">memcache.max_failover_attempts</tt></i> <a href="language.types.integer.html" class="type integer">integer</a> </span> <dd> <p class="para"> Defines how many servers to try when setting and getting data. Used only in conjunction with memcache.allow_failover. </p> </dd> </dt> <dt id="ini.memcache.chunk-size"> <span class="term"> <i><tt class="parameter">memcache.chunk_size</tt></i> <a href="language.types.integer.html" class="type integer">integer</a> </span> <dd> <p class="para"> Data will be transferred in chunks of this size, setting the value lower requires more network writes. Try increasing this value to 32768 if noticing otherwise inexplicable slowdowns. </p> </dd> </dt> <dt id="ini.memcache.default-port"> <span class="term"> <i><tt class="parameter">memcache.default_port</tt></i> <a href="language.types.string.html" class="type string">string</a> </span> <dd> <p class="para"> The default TCP port number to use when connecting to the memcached server if no other port is specified. </p> </dd> </dt> <dt id="ini.memcache.hash-strategy"> <span class="term"> <i><tt class="parameter">memcache.hash_strategy</tt></i> <a href="language.types.string.html" class="type string">string</a> </span> <dd> <p class="para"> Controls which strategy to use when mapping keys to servers. Set this value to <i>consistent</i> to enable consistent hashing which allows servers to be added or removed from the pool without causing keys to be remapped. Setting this value to <i>standard</i> results in the old strategy being used. </p> </dd> </dt> <dt id="ini.memcache.hash-function"> <span class="term"> <i><tt class="parameter">memcache.hash_function</tt></i> <a href="language.types.string.html" class="type string">string</a> </span> <dd> <p class="para"> Controls which hash function to apply when mapping keys to servers, <i>crc32</i> uses the standard CRC32 hash while <i>fnv</i> uses FNV-1a. </p> </dd> </dt> <dt id="ini.memcache.session-handler"> <span class="term"> <i><tt class="parameter">session.save_handler</tt></i> <a href="language.types.string.html" class="type string">string</a> </span> <dd> <p class="para"> Use memcache as a session handler by setting this value to <i>memcache</i>. </p> </dd> </dt> <dt id="ini.memcache.save-path"> <span class="term"> <i><tt class="parameter">session.save_path</tt></i> <a href="language.types.string.html" class="type string">string</a> </span> <dd> <p class="para"> Defines a comma separated of server urls to use for session storage, for example <i>"tcp://host1:11211, tcp://host2:11211"</i>. </p> <p class="para"> Each url may contain parameters which are applied to that server, they are the same as for the <a href="function.memcache-addserver.html" class="function">Memcache::addServer()</a> method. For example <i>"tcp://host1:11211?persistent=1&weight=1&timeout=1&retry_interval=15"</i> </p> </dd> </dt> </dl></p></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="memcache.installation.html">Installation</a></div> <div class="next" style="text-align: right; float: right;"><a href="memcache.resources.html">Resource Types</a></div> <div class="up"><a href="memcache.setup.html">Installing/Configuring</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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