function.memcache-setcompressthreshold.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>Enable automatic compression of large values</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.memcache-set.html">Memcache::set</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.memcache-setserverparams.html">Memcache::setServerParams</a></div> <div class="up"><a href="ref.memcache.html">Memcache Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.memcache-setcompressthreshold" class="refentry"> <div class="refnamediv"> <h1 class="refname">Memcache::setCompressThreshold</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">Memcache::setCompressThreshold</span> — <span class="dc-title">Enable automatic compression of large values</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>Memcache::setCompressThreshold</b></b></span> ( <span class="methodparam"><span class="type">int</span> <tt class="parameter">$threshold</tt></span> [, <span class="methodparam"><span class="type">float</span> <tt class="parameter">$min_savings</tt></span> ] )</div> <p class="para rdfs-comment"> <b>Memcache::setCompressThreshold()</b> enables automatic compression of large values. You can also use the <b>memcache_set_compress_threshold()</b> function. </p> <blockquote><p><b class="note">Note</b>: This function has been added to Memcache version 2.0.0. <br /> </p></blockquote> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">threshold</tt></i></span> <dd> <p class="para"> Controls the minimum value length before attempting to compress automatically. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">min_saving</tt></i></span> <dd> <p class="para"> Specifies the minimum amount of savings to actually store the value compressed. The supplied value must be between 0 and 1. Default value is 0.2 giving a minimum 20% compression savings. </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 <b>Memcache::setCompressThreshold()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">/* OO API */<br /><br /></span><span style="color: #0000BB">$memcache_obj </span><span style="color: #007700">= new </span><span style="color: #0000BB">Memcache</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$memcache_obj</span><span style="color: #007700">-></span><span style="color: #0000BB">addServer</span><span style="color: #007700">(</span><span style="color: #DD0000">'memcache_host'</span><span style="color: #007700">, </span><span style="color: #0000BB">11211</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$memcache_obj</span><span style="color: #007700">-></span><span style="color: #0000BB">setCompressThreshold</span><span style="color: #007700">(</span><span style="color: #0000BB">20000</span><span style="color: #007700">, </span><span style="color: #0000BB">0.2</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* procedural API */<br /><br /></span><span style="color: #0000BB">$memcache_obj </span><span style="color: #007700">= </span><span style="color: #0000BB">memcache_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'memcache_host'</span><span style="color: #007700">, </span><span style="color: #0000BB">11211</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">memcache_set_compress_threshold</span><span style="color: #007700">(</span><span style="color: #0000BB">$memcache_obj</span><span style="color: #007700">, </span><span style="color: #0000BB">20000</span><span style="color: #007700">, </span><span style="color: #0000BB">0.2</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.memcache-set.html">Memcache::set</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.memcache-setserverparams.html">Memcache::setServerParams</a></div> <div class="up"><a href="ref.memcache.html">Memcache 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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