php教程

is_double

(PHP 4, PHP 5, PHP 7)

is_doubleis_float() 的别名

描述

此函数是 is_float() 的别名函数。

User Contributed Notes

There are no user contributed notes for this page.

CopyRight © 2008-2022 verySource.Com All Rights reserved. 京ICP备17048824号-1 京公网安备:11010502034788