array-sum.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- splitted from ./it/functions/array.xml, last change in rev 1.7 -->
<!-- last change to 'array-sum' in en/ tree in rev 1.59 -->
<!-- EN-Revision: n/a Maintainer: cucinato Status: ready -->
<!-- OLD-Revision: 1.173/EN.1.59 -->
  <refentry xml:id="function.array-sum" xmlns="http://docbook.org/ns/docbook">
   <refnamediv>
    <refname>array_sum</refname>
    <refpurpose>
     Calcola la somma dei valori di un array
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Descrizione</title>
     <methodsynopsis>
      <type>mixed</type><methodname>array_sum</methodname>
      <methodparam><type>array</type><parameter>array</parameter></methodparam>
     </methodsynopsis>
    <para>
     <function>array_sum</function> restituisce la somma dei valori
     dell'array sotto forma di integer o float.
    </para>
    <para>
     <example>
      <title>esempi di <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>
    <note>
     <para>
      Le versioni di PHP antecedenti alla 4.2.1 modificavano l'array stesso
      e convertivano le stringhe in numeri (le quali erano 
      convertite in zeri la maggior parte delle volte, a seconda
      dal valore).
     </para>
    </note>
   </refsect1>
  </refentry>

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