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array-keys.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!-- splitted from ./it/functions/array.xml, last change in rev 1.11 -->
<!-- last change to 'array-keys' in en/ tree in rev 1.2 -->
<!-- EN-Revision: n/a Maintainer: cucinato Status: ready -->
<!-- OLD-Revision: 1.173/EN.1.2 -->
<refentry xml:id="function.array-keys" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>array_keys</refname>
<refpurpose>Restituisce tutte le chiavi di un array</refpurpose>
</refnamediv>
<refsect1>
<title>Descrizione</title>
<methodsynopsis>
<type>array</type><methodname>array_keys</methodname>
<methodparam><type>array</type><parameter>input</parameter></methodparam>
<methodparam choice="opt"><type>mixed</type><parameter>
valore_ricerca
</parameter></methodparam>
</methodsynopsis>
<para>
<function>array_keys</function> rstituisce le chiavi, numeriche e
stringa, dell'array <parameter>input</parameter>.
</para>
<para>
Se il parametro opzionale <parameter>valore_ricerca</parameter> è specificato,
solo le chiavi che corrispondono a quel valore vengono restituite. Altrimenti, vengono restituite tutte
le chiavi dell'array <parameter>input</parameter>.
</para>
<para>
<example>
<title>Esempio di <function>array_keys</function></title>
<programlisting role="php">
<![CDATA[
?php
$array = array(0 => 100, "colore" => "rosso");
print_r(array_keys($array))
$array = array("blu", "rosso", "verde", "blu", "blu");
print_r(array_keys($array, "blu"));
$array = array("colore" => array("blu", "rosso", "verde"),
"misura" => array("piccola", "media", "grande"));
print_r(array_keys($array));
?>
]]>
</programlisting>
<para>
Il risultato di questo programma sarà:
</para>
<screen>
<![CDATA[
Array
(
[0] => 0
[1] => colore
)
Array
(
[0] => 0
[1] => 3
[2] => 4
)
Array
(
[0] => colore
[1] => misura
)
]]>
</screen>
</example>
</para>
<para>
Vedere anche <function>array_values</function> e
<function>array_key_exists</function>.
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->