<?php
function make_seed()
{
  list($usec, $sec) = explode(' ', microtime());
  return (float) $sec + ((float) $usec * 100000);
}
srand(make_seed());
$randval_1 = rand(1,1000);//亂數範圍1~1000
$randval_2 = rand(1,1000);//亂數範圍1~1000
echo $randval_1."<br>";
echo $randval_2."<br>";
?>