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<hypotis_infinite>
Last updated: Mon, 16 Jul 2012

is_finite

(PHP 4 >= 4.2.0, PHP 5)

is_finite -- 判断是否为有限值

说明

bool is_finite ( float val )

如果 val 是本机平台上 PHP 浮点数所允许范围中的一个合法的有限值，则返回 TRUE。

参见 is_infinite() 和 is_nan()。




<hypotis_infinite>
 Last updated: Mon, 16 Jul 2012
 
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