wincache-ucache-exists.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.wincache-ucache-exists" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>wincache_ucache_exists</refname>
  <refpurpose>
   Comprueba si una variable existe en la caché del usuario
  </refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>wincache_ucache_exists</methodname>
   <methodparam><type>string</type><parameter>key</parameter></methodparam>
  </methodsynopsis>
  <para>
   Comprueba si una variable con la <parameter>key</parameter> existe en la caché de usuario o no.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>key</parameter></term>
     <listitem>
      <para>
       La <parameter>key</parameter> que se utiliza para almacenar la variable en la caché. 
       <parameter>key</parameter> distingue mayúsculas de minúsculas.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Devuelve &true; si la variable con la <parameter>key</parameter> existe, 
   en caso contrario devuelve &false;.
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Usando <function>wincache_ucache_exists</function></title>
    <programlisting role="php">
<![CDATA[
<?php
if (!wincache_ucache_exists('green'))
    wincache_ucache_set('green', 1);
var_dump(wincache_ucache_exists('green'));
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
bool(true)
]]>
    </screen>    
   </example>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>wincache_ucache_set</function></member>
    <member><function>wincache_ucache_add</function></member>
    <member><function>wincache_ucache_get</function></member>
    <member><function>wincache_ucache_clear</function></member>
    <member><function>wincache_ucache_delete</function></member>
    <member><function>wincache_ucache_meminfo</function></member>
    <member><function>wincache_ucache_info</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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