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

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>intval</H1
><DIV
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><P
>    (PHP 3, PHP 4, PHP 5)</P
>intval&nbsp;--&nbsp;获取变量的整数值</DIV
><DIV
CLASS="refsect1"
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NAME="AEN236382"
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><H2
>描述</H2
>int <B
CLASS="methodname"
>intval</B
> ( mixed var [, int base] )<BR
></BR
><P
>&#13;     通过使用特定的进制转换(默认是十进制),返回变量 <CODE
CLASS="parameter"
>var</CODE
>
     的 <A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
> 数值。 
    </P
><P
>&#13;     <CODE
CLASS="parameter"
>var</CODE
> 可以是任何标量类型。<B
CLASS="function"
>intval()</B
>
     不能用于 <A
HREF="language.types.array.html"
><B
CLASS="type"
>array</B
></A
> 或 <A
HREF="language.types.object.html"
><B
CLASS="type"
>object</B
></A
>。
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
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><P
><B
>注意: </B
>
      除非 <CODE
CLASS="parameter"
>var</CODE
>
      参数是字符串,否则 <B
CLASS="function"
>intval()</B
>
      的 <CODE
CLASS="parameter"
>base</CODE
>
      参数不会有效果。
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;     参见 <A
HREF="function.floatval.html"
><B
CLASS="function"
>floatval()</B
></A
>、<A
HREF="function.strval.html"
><B
CLASS="function"
>strval()</B
></A
>、<A
HREF="function.settype.html"
><B
CLASS="function"
>settype()</B
></A
>
     和 <A
HREF="language.types.type-juggling.html"
>类型戏法</A
>。
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