PHP 5.5.16 is released

The SplFloat class

(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 {
/* Constants */
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

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