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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>array_shift</H1
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>    (PHP 4, PHP 5)</P
>array_shift&nbsp;--&nbsp;Retira o primeiro elemento de um array</DIV
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>Descrição</H2
>mixed <B
CLASS="methodname"
>array_shift</B
> ( array &#38;array )<BR
></BR
><P
>&#13;     <B
CLASS="function"
>array_shift()</B
> retira o primeiro elemento de
     <CODE
CLASS="parameter"
>array</CODE
> e o retorna, diminuindo
     <CODE
CLASS="parameter"
>array</CODE
> em um elemento e movendo todos os outros
     elementos para trás.  Todas as chaves numéricas alteradas para começar a
     contar a de 0 (zero), enquanto chaves string permanecerão inalteradas.
     Se <CODE
CLASS="parameter"
>array</CODE
> estiver vazio (ou se não for
     um array), o valor <TT
CLASS="constant"
><B
>NULL</B
></TT
> é retornado.
    </P
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>Nota: </B
>Esta função irá
 <B
CLASS="function"
>resetar()</B
> o ponteiro do <A
HREF="language.types.array.html"
><B
CLASS="type"
>array</B
></A
> depois
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><B
>Exemplo 1. Exemplo de <B
CLASS="function"
>array_shift()</B
></B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$cesta </font><font color="#007700">= array(</font><font color="#DD0000">"laranja"</font><font color="#007700">, </font><font color="#DD0000">"banana"</font><font color="#007700">, </font><font color="#DD0000">"melancia"</font><font color="#007700">, </font><font color="#DD0000">"morango"</font><font color="#007700">);<br /></font><font color="#0000BB">$fruta </font><font color="#007700">= </font><font color="#0000BB">array_shift</font><font color="#007700">(</font><font color="#0000BB">$cesta</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">$cesta</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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><P
>&#13;       O programa acima resultaria em <CODE
CLASS="varname"
>$stack</CODE
> tendo 3
       elementos:
      </P
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><code><font color="#000000">
Array<br />(<br />&nbsp;&nbsp;&nbsp;&nbsp;[0] =&gt; banana<br />&nbsp;&nbsp;&nbsp;&nbsp;[1] =&gt; melancia<br />&nbsp;&nbsp;&nbsp;&nbsp;[2] =&gt; morango<br />)</font>
</code></TD
></TR
></TABLE
><P
>&#13;       e <TT
CLASS="literal"
>laranja</TT
> seria passado para
       <CODE
CLASS="varname"
>$fruta</CODE
>.
      </P
></DIV
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><P
>&#13;     Veja também <A
HREF="function.array-unshift.html"
><B
CLASS="function"
>array_unshift()</B
></A
>,
     <A
HREF="function.array-push.html"
><B
CLASS="function"
>array_push()</B
></A
> e
     <A
HREF="function.array-pop.html"
><B
CLASS="function"
>array_pop()</B
></A
>.
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