PHP取多个不重复的随机数

PHP取多个不重复的随机数

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;}//testprint_r(multi_rand(1, 10, 8));