cvs: phpdoc-da /reference/array/functions count.xml
| From: | Jesper Laursen | Date: | Tue, 28 Sep 2004 21:35:50 +0000 |
| Subject: | cvs: phpdoc-da /reference/array/functions count.xml | ||
| Groups: | php.doc.da | ||
| Request: | Send a blank email to doc-da+get-256@lists.php.net to get a copy of this message | ||
lauer Tue Sep 28 17:35:50 2004 EDT
Added files:
/phpdoc-da/reference/array/functions count.xml
Log:
Initial translation
http://cvs.php.net/co.php/phpdoc-da/reference/array/functions/count.xml?r=1.1&p=1
Index: phpdoc-da/reference/array/functions/count.xml
+++ phpdoc-da/reference/array/functions/count.xml
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.1 $ -->
<!-- EN-Revision: 1.12 Maintainer: lauer Status: processing -->
<refentry id="function.count">
<refnamediv>
<refname>count</refname>
<refpurpose>Tæller antallet af elementer i en variabel</refpurpose>
</refnamediv>
<refsect1>
<title>Beskrivelse</title>
<methodsynopsis>
<type>int</type><methodname>count</methodname>
<methodparam><type>mixed</type><parameter>var</parameter></methodparam>
<methodparam
choice="opt"><type>int</type><parameter>mode</parameter></methodparam>
</methodsynopsis>
<para>
Returner antallet af elementer i et <parameter>var</parameter>, hvilket
ofte er et <type>array</type>. (Da alle andre ting kun har et element).
</para>
<para>
Hvis <parameter>var</parameter> ikke er et array vil
<literal>1</literal>
blive returneret (udtagelse: <literal>count(&null;)</literal> vil
returner <literal>0</literal>)
</para>
<note>
<simpara>
Den valgfrie paramenter, <parameter>mode</parameter>, vil kunne bruges
fra PHP 4.2.0.
</simpara>
</note>
<para>
Hvis den valgfrie paramenter, <paramenter>mode</paramenter>, er sat til
<constant>COUNT_RECURSIVE</constant> (eller 1),
<function>count</function>
vil rekursiv tælle arrayet. Det er en fordel hvis man vil tælle alle
elementer i et multidimensionel array. Standardværdien for
<parameter>mode</parameter> er <literal>0</literal>.
<function>count</function> tjekker ikke for uendelig gennemløb.
</para>
<caution>
<para>
<function>count</function> vil returner 0 for en variabel som ikke er
sat, men returner også 0 for en variabel som er blevet sat
med et tomt array. Brug <function>isset</function> for at teste
om en variabel er sat.
</para>
</caution>
<para>
Se <link linkend="language.types.array">Arrays</link> sektionen af
manualen
for at få en detaljeret forklaring om hvordan arrays er bygget ind og
brugt i PHP.
</para>
<para>
<example>
<title><function>count</function> eksempel</title>
<programlisting role="php">
<!-- TODO: examples about count(null), count(false), count(object).. -->
<![CDATA[
<?php
$a[0] = 1;
$a[1] = 3;
$a[2] = 5;
$result = count($a);
// $result == 3
$b[0] = 7;
$b[5] = 9;
$b[10] = 11;
$result = count($b);
// $result == 3;
?>
]]>
</programlisting>
</example>
</para>
<para>
<example>
<title>
rekursiv <function>count</function> eksempel (PHP >= 4.2.0)
</title>
<programlisting role="php">
<![CDATA[
<?php
$food = array('fruits' => array('orange', 'banana',
'apple'),
'veggie' => array('carrot', 'collard',
'pea'));
// rekursiv count
echo count($food, COUNT_RECURSIVE); // output 8
// normal count
echo count($food); // output 2
?>
]]>
</programlisting>
</example>
</para>
<note>
<para>
Funktionen <function>sizeof</function> er et
<link linkend="aliases">alias</link> for
<function>count</function>.
</para>
</note>
<para>
Se også <function>is_array</function>,
<function>isset</function> og
<function>strlen</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:"../../../../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
-->