//php生成2位小数的随机数
function randomFloat($min = 0, $max = 10)
{
$num = $min + mt_rand() / mt_getrandmax() * ($max - $min);
return sprintf("%.2f", $num);
}
echo randomFloat(1,5);
来源：https://blog.csdn.net/cen_cs/article/details/45500789
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//php生成2位小数的随机数
function randomFloat($min = 0, $max = 10)
{
$num = $min + mt_rand() / mt_getrandmax() * ($max - $min);
return sprintf("%.2f", $num);
}
echo randomFloat(1,5);
来源：https://blog.csdn.net/cen_cs/article/details/45500789
