array-sum.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.array-sum" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>array_sum</refname>
  <refpurpose>Calcular la suma de los valores de un array</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>number</type><methodname>array_sum</methodname>
   <methodparam><type>array</type><parameter>array</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>array_sum</function> devuelve la suma de los valores de un array.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>array</parameter></term>
     <listitem>
      <para>
       El array de entrada.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Devuelve la suma de los valores como un valor de tipo integer o float; <literal>0</literal> si el 
   <parameter>array</parameter> está vacío.
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Ejemplos de <function>array_sum</function></title>
    <programlisting role="php">
<![CDATA[
<?php
$a = array(2, 4, 6, 8);
echo "sum(a) = " . array_sum($a) . "\n";

$b = array("a" => 1.2, "b" => 2.3, "c" => 3.4);
echo "sum(b) = " . array_sum($b) . "\n";
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
sum(a) = 20
sum(b) = 6.9
]]>
    </screen>
   </example>
  </para>
 </refsect1>
</refentry>

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