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_pop</H1
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><P
>    (PHP 4, PHP 5)</P
>array_pop&nbsp;--&nbsp;将数组最后一个单元弹出（出栈）</DIV
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><H2
>说明</H2
>mixed <B
CLASS="methodname"
>array_pop</B
> ( array &#38;array )<BR
></BR
><P
>&#13;     <B
CLASS="function"
>array_pop()</B
> 弹出并返回
     <CODE
CLASS="parameter"
>array</CODE
> 数组的最后一个单元，并将数组
     <CODE
CLASS="parameter"
>array</CODE
> 的长度减一。如果
     <CODE
CLASS="parameter"
>array</CODE
> 为空（或者不是数组）将返回 <TT
CLASS="constant"
><B
>NULL</B
></TT
>。
    </P
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><B
>注意: </B
>使用本函数后会重置（<A
HREF="function.reset.html"
><B
CLASS="function"
>reset()</B
></A
>）数组指针。</P
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>例 1. <B
CLASS="function"
>array_pop()</B
> 例子</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$stack </font><font color="#007700">= array(</font><font color="#DD0000">"orange"</font><font color="#007700">, </font><font color="#DD0000">"banana"</font><font color="#007700">, </font><font color="#DD0000">"apple"</font><font color="#007700">, </font><font color="#DD0000">"raspberry"</font><font color="#007700">);<br /></font><font color="#0000BB">$fruit </font><font color="#007700">= </font><font color="#0000BB">array_pop</font><font color="#007700">(</font><font color="#0000BB">$stack</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">$stack</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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><P
>&#13;       经过此操作后，<CODE
CLASS="varname"
>$stack</CODE
> 将只有 3 个单元：
      </P
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><code><font color="#000000">
Array<br />(<br />&nbsp;&nbsp;&nbsp;&nbsp;[0] =&gt; orange<br />&nbsp;&nbsp;&nbsp;&nbsp;[1] =&gt; banana<br />&nbsp;&nbsp;&nbsp;&nbsp;[2] =&gt; apple<br />)</font>
</code></TD
></TR
></TABLE
><P
>&#13;       并且 <TT
CLASS="literal"
>rasberry</TT
> 将被赋给 <CODE
CLASS="varname"
>$fruit</CODE
>。
      </P
></DIV
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>
    </P
><P
>&#13;     参见 <A
HREF="function.array-push.html"
><B
CLASS="function"
>array_push()</B
></A
>，<A
HREF="function.array-shift.html"
><B
CLASS="function"
>array_shift()</B
></A
> 和 <A
HREF="function.array-unshift.html"
><B
CLASS="function"
>array_unshift()</B
></A
>。
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