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在php中处理随机数?
原标题:dealing with random numbers in php?

我想要一个小php函数来选择一个0到5之间的数字,50%的几率为零,并且同时在两个字符串之间随机选择:

该算法:

choose number between 0,1,2,3,4,5 randomly
(50% chance for zero, 50% chance for 1,2,3,4,5)
and 

choose string blue, yellow randomly

return(number, string); 

php能在一个函数中做到这一点吗。干杯)谢谢

最佳回答
function getPair()
{
    $colors = array( "blue", "yellow" );
    $elem = $colors[ rand( 0, count( $colors ) - 1 ) ];
    return array( rand( 0, 1 ) * rand( 1, 5 ), $elem );
}
问题回答

0的50%机会使随机过程有偏差。请参见:





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