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<div class="refnamediv">
<h1 class="refname">wincache_ucache_delete</h1>
<p class="verinfo">(PECL wincache >= 1.1.0)</p><p class="refpurpose"><span class="refname">wincache_ucache_delete</span> — <span class="dc-title">
Deletes variables from the user cache
</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.wincache-ucache-delete-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>wincache_ucache_delete</strong></span>
( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$key</code></span>
)</div>
<p class="para rdfs-comment">
Deletes the elements in the user cache pointed by <em><code class="parameter">key</code></em>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.wincache-ucache-delete-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">
The <em><code class="parameter">key</code></em> that was used to store the variable in the cache.
<em><code class="parameter">key</code></em> is case sensitive. <em><code class="parameter">key</code></em> can be an
array of keys.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.wincache-ucache-delete-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
</p>
<p class="para">
If <em><code class="parameter">key</code></em> is an array then the function returns <strong><code>FALSE</code></strong>
if every element of the array fails to get deleted from the user cache, otherwise returns an
array which consists of all the keys that are deleted.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.wincache-ucache-delete-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-574">
<p><strong>Example #1 Using <span class="function"><strong>wincache_ucache_delete()</strong></span> with <em><code class="parameter">key</code></em> as a string</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />wincache_ucache_set</span><span style="color: #007700">(</span><span style="color: #DD0000">'foo'</span><span style="color: #007700">, </span><span style="color: #DD0000">'bar'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">wincache_ucache_delete</span><span style="color: #007700">(</span><span style="color: #DD0000">'foo'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">wincache_ucache_exists</span><span style="color: #007700">(</span><span style="color: #DD0000">'foo'</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:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
bool(true)
bool(false)
</pre></div>
</div>
</div>
</p>
<p class="para">
<div class="example" id="example-575">
<p><strong>Example #2 Using <span class="function"><strong>wincache_ucache_delete()</strong></span> with <em><code class="parameter">key</code></em> as an array</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$array1 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'green' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'5'</span><span style="color: #007700">, </span><span style="color: #DD0000">'blue' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'6'</span><span style="color: #007700">, </span><span style="color: #DD0000">'yellow' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'7'</span><span style="color: #007700">, </span><span style="color: #DD0000">'cyan' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'8'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">wincache_ucache_set</span><span style="color: #007700">(</span><span style="color: #0000BB">$array1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$array2 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'green'</span><span style="color: #007700">, </span><span style="color: #DD0000">'blue'</span><span style="color: #007700">, </span><span style="color: #DD0000">'yellow'</span><span style="color: #007700">, </span><span style="color: #DD0000">'cyan'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">wincache_ucache_delete</span><span style="color: #007700">(</span><span style="color: #0000BB">$array2</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
array(4) { [0]=> string(5) "green"
[1]=> string(4) "Blue"
[2]=> string(6) "yellow"
[3]=> string(4) "cyan" }
</pre></div>
</div>
</div>
</p>
<p class="para">
<div class="example" id="example-576">
<p><strong>Example #3 Using <span class="function"><strong>wincache_ucache_delete()</strong></span> with <em><code class="parameter">key</code></em> as an array where some elements cannot be deleted</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$array1 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'green' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'5'</span><span style="color: #007700">, </span><span style="color: #DD0000">'blue' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'6'</span><span style="color: #007700">, </span><span style="color: #DD0000">'yellow' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'7'</span><span style="color: #007700">, </span><span style="color: #DD0000">'cyan' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'8'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">wincache_ucache_set</span><span style="color: #007700">(</span><span style="color: #0000BB">$array1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$array2 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'orange'</span><span style="color: #007700">, </span><span style="color: #DD0000">'red'</span><span style="color: #007700">, </span><span style="color: #DD0000">'yellow'</span><span style="color: #007700">, </span><span style="color: #DD0000">'cyan'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">wincache_ucache_delete</span><span style="color: #007700">(</span><span style="color: #0000BB">$array2</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:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
array(2) { [0]=> string(6) "yellow"
[1]=> string(4) "cyan" }
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.wincache-ucache-delete-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.wincache-ucache-set.html" class="function" rel="rdfs-seeAlso">wincache_ucache_set()</a> - Adds a variable in user cache and overwrites a variable if it already exists in the cache</span></li>
<li class="member"> <span class="function"><a href="function.wincache-ucache-add.html" class="function" rel="rdfs-seeAlso">wincache_ucache_add()</a> - Adds a variable in user cache only if variable does not already exist in the cache</span></li>
<li class="member"> <span class="function"><a href="function.wincache-ucache-get.html" class="function" rel="rdfs-seeAlso">wincache_ucache_get()</a> - Gets a variable stored in the user cache</span></li>
<li class="member"> <span class="function"><a href="function.wincache-ucache-clear.html" class="function" rel="rdfs-seeAlso">wincache_ucache_clear()</a> - Deletes entire content of the user cache</span></li>
<li class="member"> <span class="function"><a href="function.wincache-ucache-exists.html" class="function" rel="rdfs-seeAlso">wincache_ucache_exists()</a> - Checks if a variable exists in the user cache</span></li>
<li class="member"> <span class="function"><a href="function.wincache-ucache-meminfo.html" class="function" rel="rdfs-seeAlso">wincache_ucache_meminfo()</a> - Retrieves information about user cache memory usage</span></li>
<li class="member"> <span class="function"><a href="function.wincache-ucache-info.html" class="function" rel="rdfs-seeAlso">wincache_ucache_info()</a> - Retrieves information about data stored in the user cache</span></li>
</ul>
</p>
</div>
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