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

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

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>deg2rad</H1
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>    (PHP 3 &#62;= 3.0.4, PHP 4, PHP 5)</P
>deg2rad&nbsp;--&nbsp;
     将角度转换为弧度
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>说明</H2
>float <B
CLASS="methodname"
>deg2rad</B
> ( float number )<BR
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>&#13;     本函数把 <CODE
CLASS="parameter"
>number</CODE
> 从角度转换成弧度。
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>例 1. <B
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>deg2rad()</B
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<font color="#0000BB">&lt;?php<br />&nbsp;&nbsp;&nbsp;&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#007700">echo </font><font color="#0000BB">deg2rad</font><font color="#007700">(</font><font color="#0000BB">45</font><font color="#007700">); </font><font color="#FF8000">// 0.785398163397<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">deg2rad</font><font color="#007700">(</font><font color="#0000BB">45</font><font color="#007700">) === </font><font color="#0000BB">M_PI_4</font><font color="#007700">); </font><font color="#FF8000">// bool(true)<br />&nbsp;&nbsp;&nbsp;&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">?&gt;</font>
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>&#13;     参见 <A
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><B
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>rad2deg()</B
></A
>。
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