php实现每天自动变换随机问候语的方法

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。