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>uksort</H1
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> (PHP 3 >= 3.0.4, PHP 4, PHP 5)</P
>uksort --
Ordena um array pelas chaves utilizando uma função de comparação
definida pelo usuário.
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>Descrição</H2
>void <B
CLASS="methodname"
>uksort</B
> ( array array, function cmp_function )<BR
></BR
><P
> Essa função irá ordenar as chaves de um array usando uma função de
comparação definida pelo usuário. Se o array
precisa ser classificado utilizando um critério não trivial, você deve
usar essa função.
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>Exemplo 1. Exemplo de <B
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>uksort()</B
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><code><font color="#000000">
function cmp($a, $b) { <br /> if ($a == $b) {<br /> return 0;<br /> }<br /> return ($a > $b) ? -1 : 1;<br />}<br /><br />$a = array(4 => "quatro", 3 => "tres", 20 => "vinte", 10 => "dez");<br /><br />uksort($a, "cmp");<br /><br />while (list($chave, $valor) = each($a)) {<br /> echo "$chave: $valor\n";<br />}<br />?></font>
</code></TD
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><P
> Esse exemplo mostraria:
</P
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>20: vinte
10: dez
4: quatro
3: tres</PRE
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> Veja também <A
HREF="function.usort.html"
><B
CLASS="function"
>usort()</B
></A
>, <A
HREF="function.uasort.html"
><B
CLASS="function"
>uasort()</B
></A
>,
<A
HREF="function.sort.html"
><B
CLASS="function"
>sort()</B
></A
>, <A
HREF="function.asort.html"
><B
CLASS="function"
>asort()</B
></A
>,
<A
HREF="function.arsort.html"
><B
CLASS="function"
>arsort()</B
></A
>, <A
HREF="function.ksort.html"
><B
CLASS="function"
>ksort()</B
></A
>,
<A
HREF="function.natsort.html"
><B
CLASS="function"
>natsort()</B
></A
> e <A
HREF="function.rsort.html"
><B
CLASS="function"
>rsort()</B
></A
>.
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