php实现每天自动变换随机问候语的方法

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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.

*/

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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);