生成两个在PHP中不相等的数字

Question

我需要生成两个在PHP中不相等的数字.

我知道我$random1 = (rand()%9);用来生成0-9之间的随机数.我想我需要添加一些内容.

谢谢!

Answer 1

$r = str_shuffle("0123456789");
$r1 = (int) $r[0];
$r2 = (int) $r[1];

Answer 2

$rnd1 = rand(0,9);
do {
  $rnd2 = rand(0,9);
} while ($rnd1 == $rnd2);

Answer 3

$random1 = (rand() % 10)
$random2 = $random1 + (rand()%9)+1 

通过这种方式它们永远不会相等(因为至少1将被添加到$ random1)

如果两个数都必须是0-9,你只需要用最后一个mod操作:

$random1 = (rand() % 10)
$random2 = ($random1 + (rand()%9)+1 ) %10 

Answer 4

$random1 = 4;
$random2 = 5;

Answer 5

$numbers = array_rand(range(0, 9), 2);

echo '<pre>';
print_r($numbers);
echo '</pre>';