Sophie: php-manual-pt_BR-5.2.4-1mdv2008.1 noarch

php-manual-pt_BR-5.2.4-1mdv2008.1.noarch.rpm

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>    (PHP 3, PHP 4, PHP 5)</P
>current&nbsp;--&nbsp;Retorna o elemento corrente em um array</DIV
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>Descrição</H2
>mixed <B
CLASS="methodname"
>current</B
> ( array array )<BR
></BR
><P
>&#13;     Todo array tem um ponteiro interno para o elemento "atual",
     o qual é inicializado para apontar para o primeiro elemento inserido em
     um array.
    </P
><P
>&#13;     A função <B
CLASS="function"
>current()</B
> simplesmente retorna
     o elemento do array para o qual esse ponteiro interno está apontando.
     Não move o ponteiro de forma alguma. Se o ponteiro interno
     estiver apontando para além do final da lista de elementos,
     <B
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>current()</B
> retorna <TT
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> 
       Se o array contêm elementos vazios (0 ou "", uma 
       string vazia) então esta função retorna <TT
CLASS="constant"
><B
>FALSE</B
></TT
> 
       para esses elementos. Isso faz com que seja impossível 
       determinar se você está realmente no final da lista de elementos de
       um array usando <B
CLASS="function"
>current()</B
>.  Para percorrer 
       devidamente um array que pode conter elementos vazios, use a função
       <A
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><B
CLASS="function"
>each()</B
></A
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>Exemplo 1. Exemplo do uso de <B
CLASS="function"
>current()</B
> e amigos</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$transport </font><font color="#007700">= array(</font><font color="#DD0000">'foot'</font><font color="#007700">, </font><font color="#DD0000">'bike'</font><font color="#007700">, </font><font color="#DD0000">'car'</font><font color="#007700">, </font><font color="#DD0000">'plane'</font><font color="#007700">);<br /></font><font color="#0000BB">$mode </font><font color="#007700">= </font><font color="#0000BB">current</font><font color="#007700">(</font><font color="#0000BB">$transport</font><font color="#007700">); </font><font color="#FF8000">// $mode = 'foot';<br /></font><font color="#0000BB">$mode </font><font color="#007700">= </font><font color="#0000BB">next</font><font color="#007700">(</font><font color="#0000BB">$transport</font><font color="#007700">);&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// $mode = 'bike';<br /></font><font color="#0000BB">$mode </font><font color="#007700">= </font><font color="#0000BB">current</font><font color="#007700">(</font><font color="#0000BB">$transport</font><font color="#007700">); </font><font color="#FF8000">// $mode = 'bike';<br /></font><font color="#0000BB">$mode </font><font color="#007700">= </font><font color="#0000BB">prev</font><font color="#007700">(</font><font color="#0000BB">$transport</font><font color="#007700">);&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// $mode = 'foot';<br /></font><font color="#0000BB">$mode </font><font color="#007700">= </font><font color="#0000BB">end</font><font color="#007700">(</font><font color="#0000BB">$transport</font><font color="#007700">);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// $mode = 'plane';<br /></font><font color="#0000BB">$mode </font><font color="#007700">= </font><font color="#0000BB">current</font><font color="#007700">(</font><font color="#0000BB">$transport</font><font color="#007700">); </font><font color="#FF8000">// $mode = 'plane';<br /></font><font color="#0000BB">?&gt;</font>
</font>
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>&#13;     Veja também <A
HREF="function.end.html"
><B
CLASS="function"
>end()</B
></A
>, <A
HREF="function.key.html"
><B
CLASS="function"
>key()</B
></A
>, <A
HREF="function.next.html"
><B
CLASS="function"
>next()</B
></A
>,
     <A
HREF="function.prev.html"
><B
CLASS="function"
>prev()</B
></A
> e <A
HREF="function.reset.html"
><B
CLASS="function"
>reset()</B
></A
>.
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