mirror of
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03d0f70798
git-svn-id: https://svn.php.net/repository/phpdoc/pl/trunk@82551 c90b9560-bf6c-de11-be94-00142212c4b1
94 lines
2.6 KiB
XML
94 lines
2.6 KiB
XML
<?xml version="1.0" encoding="iso-8859-2"?>
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<!-- EN-Revision: 1.4 Maintainer: leszek Status: ready -->
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<!-- $Revision: 1.4 $ -->
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<refentry id="function.count">
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<refnamediv>
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<refname>count</refname>
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<refpurpose>Zlicza ilo¶æ elementów w tablicy</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Opis</title>
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<methodsynopsis>
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<type>int</type><methodname>count</methodname>
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<methodparam><type>mixed</type><parameter>zmienna</parameter></methodparam>
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</methodsynopsis>
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<para>
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Zwraca ilo¶æ elementów w parametrze <parameter>zmienna</parameter>,
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która zazwyczaj bêdzie tablic± (poniewa¿ wszstko inne bêdzie mia³o
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jeden element).
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</para>
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<para>
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Je¶li <parameter>zmienna</parameter> nie jest tablic±, to zwracana
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bêdzie warto¶æ <literal>1</literal> (wyj±tek:
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<literal>count(&null;)</literal> jest równe <literal>0</literal>).
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</para>
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<warning>
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<para>
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<function>count</function> mo¿e zwróciæ 0 dla zmiennej, która nie
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zosta³a zainicjalizowana, ale mo¿ê zwróciæ tak¿e 0 dla zmiennej która
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zosta³a zainicjalizowana pust± tablic±. U¿yj
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<function>isset</function> aby sprawdziæ czy zmienna zosta³a
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ustawiona.
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</para>
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</warning>
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<para>
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Zobacz rozdzia³ podrêcznika
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<link linkend="language.types.array">Tablice</link> aby dowiedzieæ siê
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jak tablice zosta³y zaimplementowane w PHP.
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</para>
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<para>
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<example>
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<title>Przyk³ad u¿ycia <function>count</function></title>
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<programlisting role="php">
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<!-- TODO: examples about count(null), count(false), count(object).. -->
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<![CDATA[
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$a[0] = 1;
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$a[1] = 3;
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$a[2] = 5;
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$wynik = count ($a);
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// $wynik == 3
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$b[0] = 7;
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$b[5] = 9;
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$b[10] = 11;
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$wynik = count ($b);
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// $wynik == 3;
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]]>
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</programlisting>
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</example>
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</para>
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<note>
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<para>
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Funkcja <function>sizeof</function> jest <link
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linkend="aliases">aliasem</link> dla <function>count</function>.
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</para>
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</note>
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<para>
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Patrz tak¿e: <function>is_array</function>,
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<function>isset</function> i
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<function>strlen</function>.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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