发布于 2015-10-06 22:55:41 | 172 次阅读 | 评论: 0 | 来源: 网友投递
PHP开源脚本语言
PHP(外文名: Hypertext Preprocessor,中文名:“超文本预处理器”)是一种通用开源脚本语言。语法吸收了C语言、Java和Perl的特点,入门门槛较低,易于学习,使用广泛,主要适用于Web开发领域。PHP的文件后缀名为php。
本文实例讲述了php实现每天自动变换随机问候语的方法。分享给大家供大家参考。具体分析如下:
这里预先定义一个php数组,里面存放一些随机问候语,调用的时候指定是按照天,月还是年来自动更换问候语,如果选择月,则会每月更换一条问候语显示,不用每个月手动更换了,并且这段php代码比使用JS实现对搜索引擎友好
function RandomQuoteByInterval($TimeBase, $QuotesArray){ // Make sure it is a integer $TimeBase = intval($TimeBase); // How many items are in the array? $ItemCount = count($QuotesArray); // By using the modulus operator we get a pseudo // random index position that is between zero and the // maximal value (ItemCount) $RandomIndexPos = ($TimeBase % $ItemCount); // Now return the random array element return $QuotesArray[$RandomIndexPos]; } /* ** --> See the example section below for a ** detailed instruction. */
使用范例:
// Use the day of the year to get a daily changing // quote changing (z = 0 till 365) $DayOfTheYear = date('z'); // You could also use: // --> date('m'); // Quote changes every month // --> date('h'); // Quote changes every hour // --> date('i'); // Quote changes every minute // Example array with some random quotes $RandomQuotes = array( 'No animals were harmed in the making of this snippet.', 'Nice snippets', 'The modulus operator rocks!', 'PHP is cool.' ); print RandomQuoteByInterval($DayOfTheYear, $RandomQuotes);