<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Increment item's value</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="memcache.getversion.html">Memcache::getVersion</a></div> <div class="next" style="text-align: right; float: right;"><a href="memcache.pconnect.html">Memcache::pconnect</a></div> <div class="up"><a href="class.memcache.html">Memcache</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="memcache.increment" class="refentry"> <div class="refnamediv"> <h1 class="refname">Memcache::increment</h1> <p class="verinfo">(PECL memcache >= 0.2.0)</p><p class="refpurpose"><span class="refname">Memcache::increment</span> — <span class="dc-title">Increment item's value</span></p> </div> <div class="refsect1 description" id="refsect1-memcache.increment-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><strong>Memcache::increment</strong></span> ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$key</code></span> [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$value</code><span class="initializer"> = 1</span></span> ] )</div> <p class="para rdfs-comment"> <span class="function"><strong>Memcache::increment()</strong></span> increments value of an item by the specified <em><code class="parameter">value</code></em>. If item specified by <em><code class="parameter">key</code></em> was not numeric and cannot be converted to a number, it will change its value to <em><code class="parameter">value</code></em>. <span class="function"><strong>Memcache::increment()</strong></span> <em class="emphasis">does not</em> create an item if it doesn't already exist. <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> Do not use <span class="function"><strong>Memcache::increment()</strong></span> with items that have been stored compressed because subsequent calls to <span class="function"><a href="memcache.get.html" class="function">Memcache::get()</a></span> will fail. </p> </p></blockquote> Also you can use <span class="function"><strong>memcache_increment()</strong></span> function. </p> </div> <div class="refsect1 parameters" id="refsect1-memcache.increment-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">key</code></em></span> <dd> <p class="para"> Key of the item to increment. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">value</code></em></span> <dd> <p class="para"> Increment the item by <em><code class="parameter">value</code></em>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-memcache.increment-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns new items value on success or <strong><code>FALSE</code></strong> on failure. </p> </div> <div class="refsect1 examples" id="refsect1-memcache.increment-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-4419"> <p><strong>Example #1 <span class="function"><strong>Memcache::increment()</strong></span> example</strong></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">/* procedural API */<br /></span><span style="color: #0000BB">$memcache_obj </span><span style="color: #007700">= </span><span style="color: #0000BB">memcache_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'memcache_host'</span><span style="color: #007700">, </span><span style="color: #0000BB">11211</span><span style="color: #007700">);<br /></span><span style="color: #FF8000">/* increment counter by 2 */<br /></span><span style="color: #0000BB">$current_value </span><span style="color: #007700">= </span><span style="color: #0000BB">memcache_increment</span><span style="color: #007700">(</span><span style="color: #0000BB">$memcache_obj</span><span style="color: #007700">, </span><span style="color: #DD0000">'counter'</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* OO API */<br /></span><span style="color: #0000BB">$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">$memcache_obj</span><span style="color: #007700">-></span><span style="color: #0000BB">connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'memcache_host'</span><span style="color: #007700">, </span><span style="color: #0000BB">11211</span><span style="color: #007700">);<br /></span><span style="color: #FF8000">/* increment counter by 3 */<br /></span><span style="color: #0000BB">$current_value </span><span style="color: #007700">= </span><span style="color: #0000BB">$memcache_obj</span><span style="color: #007700">-></span><span style="color: #0000BB">increment</span><span style="color: #007700">(</span><span style="color: #DD0000">'counter'</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-memcache.increment-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="memcache.decrement.html" class="function" rel="rdfs-seeAlso">Memcache::decrement()</a> - Decrement item's value</span></li> <li class="member"> <span class="function"><a href="memcache.replace.html" class="function" rel="rdfs-seeAlso">Memcache::replace()</a> - Replace value of the existing item</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="memcache.getversion.html">Memcache::getVersion</a></div> <div class="next" style="text-align: right; float: right;"><a href="memcache.pconnect.html">Memcache::pconnect</a></div> <div class="up"><a href="class.memcache.html">Memcache</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>