SPL Types
PHP Manual

The SplBool class

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

简介

The SplBool class is used to enforce strong typing of the bool type.

类摘要

SplBool extends SplEnum {
/* Constants */
const boolean __default = false ;
const boolean false = false ;
const boolean true = true ;
/* 继承的方法 */
public array SplEnum::getConstList ([ bool $include_default = false ] )
}

预定义常量

SplBool::__default

SplBool::false

SplBool::true

范例

Example #1 SplBool usage example

<?php
$true 
= new SplBool(true);
if (
$true) {
    echo 
"TRUE\n";
}

$false = new SplBool;
if (
$false) {
    echo 
"FALSE\n";
}
?>

以上例程会输出:

TRUE


SPL Types
PHP Manual