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

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

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>is_numeric</H1
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>    (PHP 4, PHP 5)</P
>is_numeric&nbsp;--&nbsp;
     检测变量是否为数字或数字字符串
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>描述</H2
>bool <B
CLASS="methodname"
>is_numeric</B
> ( mixed var )<BR
></BR
><P
>&#13;     如果 <CODE
CLASS="parameter"
>var</CODE
> 是数字和数字字符串则返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，否则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
    </P
><P
>&#13;     参见
     <A
HREF="function.is-bool.html"
><B
CLASS="function"
>is_bool()</B
></A
>、<A
HREF="function.is-float.html"
><B
CLASS="function"
>is_float()</B
></A
>、<A
HREF="function.is-int.html"
><B
CLASS="function"
>is_int()</B
></A
>、<A
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><B
CLASS="function"
>is_string()</B
></A
>、<A
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><B
CLASS="function"
>is_object()</B
></A
>、<A
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><B
CLASS="function"
>is_array()</B
></A
>
     和 <A
HREF="function.is-integer.html"
><B
CLASS="function"
>is_integer()</B
></A
>。
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