Php/docs/class.splfloat
来自菜鸟教程
(PECL spl_types >= 0.1.0)
简介
The SplFloat class is used to enforce strong typing of the float type.
类摘要
SplFloat extends SplType {
const
float
__default
= 0
/* 继承的方法 */
SplType::__construct
([ mixed $initial_value
[, bool $strict
]] )
}
预定义常量
SplFloat::__default
范例
Example #1 SplFloat usage example
<?php$float = new SplFloat(3.154);$newFloat = new SplFloat(3);try { $float = 'Try to cast a string value for fun';} catch (UnexpectedValueException $uve) { echo $uve->getMessage() . PHP_EOL;}echo $float . PHP_EOL;echo $newFloat . PHP_EOL;?>
以上例程会输出:
Value not a float 3.154 3
/* Constants */