PHP取多个不重复的随机数

PHP取多个不重复的随机数PHP取多个不重复的随机数

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function multi_rand($begin, $end, $count)
{
$rand_array = array();
if ( $count > ($end - $begin + 1)) {
$count = ($end - $begin + 1)
}
for ($i = 0;$i < $count; $i++ ) {
$is_ok = false;
$num = 0;
while(!$is_ok){
$num = rand($begin,$end);
$is_out = 1;
foreach ( $rand_array as $v) {
if ( $v == $num ) {
$is_ok = false;
$is_out = 0;
break;
}
}
if ($is_out == 1) {
$is_ok = true;
}
}
$rand_array[] = $num;
}
return $rand_array;
}
//test
print_r(multi_rand(1, 10, 8));

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