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
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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:
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// 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。