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archived-doc-pt-br/reference/array/functions/array-slice.xml
T
Hartmut Holzgraefe 838ad09c58 banana-split
git-svn-id: https://svn.php.net/repository/phpdoc/pt_BR/trunk@78218 c90b9560-bf6c-de11-be94-00142212c4b1
2002-04-15 01:41:25 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- splitted from ./pt_BR/functions/array.xml, last change in rev 1.1 -->
<!-- last change to 'array-slice' in en/ tree in rev 1.2 -->
<refentry id="function.array-slice">
<refnamediv>
<refname>array_slice</refname>
<refpurpose>Extrai uma "fatia" de um array</refpurpose>
</refnamediv>
<refsect1>
<title>Descri&ccedil;&atilde;o</title>
<methodsynopsis>
<type>array</type><methodname>array_slice</methodname>
<methodparam><type>array</type><parameter>array</parameter></methodparam>
<methodparam><type>int</type><parameter>offset</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>
length
</parameter></methodparam>
</methodsynopsis>
<para>
<function>array_slice</function> retorna a sequ&ecirc;ncia de elementos
de <parameter>array</parameter> especificada pelos par&acirc;metros
<parameter>offset</parameter> e <parameter>length</parameter>.
</para>
<para>
Se <parameter>offset</parameter> for positivo, a sequ&ecirc;ncia
come&ccedil;ar&aacute; no in&iacute;cio de <parameter>array</parameter>. Se
<parameter>offset</parameter> for negativo, a sequ&ecirc;ncia
come&ccedil;ar&aacute; dessa dist&acirc;ncia do final de <parameter>array</parameter>.
</para>
<para>
Se <parameter>length</parameter> for especificado e positivo, ent&atilde;o
a sequ&ecirc;ncia ter&aacute; essa quantidade de elementos. Se
<parameter>length</parameter> for especificado e negativo ent&atilde;o
a sequ&ecirc;ncia para dessa quantidade elementos a partir do final do
array. Se for omitido, ent&atilde;o a sequ&ecirc;ncia ter&aacute; todos os elementos
a partir de <parameter>offset</parameter> at&eacute; o final de
<parameter>array</parameter>.
</para>
<para>
<example>
<title>Exemplos de <function>array_slice</function></title>
<programlisting role="php">
<![CDATA[
$input = array ("a", "b", "c", "d", "e");
$output = array_slice ($input, 2); // retorna "c", "d", e "e"
$output = array_slice ($input, 2, -1); // retorna "c", "d"
$output = array_slice ($input, -2, 1); // retorna "d"
$output = array_slice ($input, 0, 3); // retorna "a", "b", e "c"
]]>
</programlisting>
</example>
</para>
<para>
Veja tamb&eacute;m <function>array_splice</function>.
</para>
</refsect1>
</refentry>
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