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李二狗 — @Meniny
Published 12:01 Jan 21, 2012.
Created by @ezra. Categorized in #Programming, and tagged as #PHP.
Source format: Markdown
布尔(即 boolean)只有两个值: true 和 false。这两个值不区分大小写，也就是说 TRUE 和 true 效果是一样的。
如果使用 echo 输出布尔值，那么 echo false; 什么都不会输出，echo true; 则会输出 1。
<?php
echo false;
echo true;
?>
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