这篇文章主要介绍了php实现每天自动变换随机问候语的方法,涉及时间与数组的相关操作技巧,需要的朋友可以参考下
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);
希望本文所述对大家的php程序设计有所帮助。
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