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

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

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>array_chunk</H1
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>    (PHP 4 &#62;= 4.2.0, PHP 5)</P
>array_chunk&nbsp;--&nbsp;将一个数组分割成多个</DIV
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>说明</H2
>array <B
CLASS="methodname"
>array_chunk</B
> ( array input, int size [, bool preserve_keys] )<BR
></BR
><P
>&#13;     <B
CLASS="function"
>array_chunk()</B
> 将一个数组分割成多个数组，其中每个数组的单元数目由
     <CODE
CLASS="parameter"
>size</CODE
> 决定。最后一个数组的单元数目可能会少几个。得到的数组是一个多维数组中的单元，其索引从零开始。
    </P
><P
>&#13;     将可选参数 <CODE
CLASS="parameter"
>preserve_keys</CODE
> 设为 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，可以使 PHP
     保留输入数组中原来的键名。如果你指定了 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>，那每个结果数组将用从零开始的新数字索引。默认值是 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
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>例 1. <B
CLASS="function"
>array_chunk()</B
> 例子</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$input_array </font><font color="#007700">= array(</font><font color="#DD0000">'a'</font><font color="#007700">, </font><font color="#DD0000">'b'</font><font color="#007700">, </font><font color="#DD0000">'c'</font><font color="#007700">, </font><font color="#DD0000">'d'</font><font color="#007700">, </font><font color="#DD0000">'e'</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">array_chunk</font><font color="#007700">(</font><font color="#0000BB">$input_array</font><font color="#007700">, </font><font color="#0000BB">2</font><font color="#007700">));<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">array_chunk</font><font color="#007700">(</font><font color="#0000BB">$input_array</font><font color="#007700">, </font><font color="#0000BB">2</font><font color="#007700">, </font><font color="#0000BB">true</font><font color="#007700">));<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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><P
>上例将输出：</P
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>Array
(
    [0] =&#62; Array
        (
            [0] =&#62; a
            [1] =&#62; b
        )

    [1] =&#62; Array
        (
            [0] =&#62; c
            [1] =&#62; d
        )

    [2] =&#62; Array
        (
            [0] =&#62; e
        )

)
Array
(
    [0] =&#62; Array
        (
            [0] =&#62; a
            [1] =&#62; b
        )

    [1] =&#62; Array
        (
            [2] =&#62; c
            [3] =&#62; d
        )

    [2] =&#62; Array
        (
            [4] =&#62; e
        )

)</PRE
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