The SplFloat class

(No version information available, might only be in SVN)

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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