无限循环的问题

Question

function addAds($n) {
 for ($i=0;$i<=$n;$i++) {
  while($row=mysql_fetch_array(mysql_query("SELECT * FROM users"))) {
   $aut[]=$row['name'];
  }
  $author=$aut[rand(0,mysql_num_rows(mysql_query("SELECT * FROM users")))];
  $name="pavadinimas".rand(0,3600);
  $rnd=rand(0,1);
  if($rnd==0) {
   $type="siulo";
  } else {
   $type="iesko";
  }
  $text="tekstas".md5("tekstas".rand(0,8000));
  $time=time()-rand(3600,86400);
  $catid=rand(1,9);
  switch ($catid) {
   case 1:
    $subid=rand(1,8);
    break;
   case 2:
    $subid=rand(9,16);
    break;
   case 3:
    $subid=rand(17,24);
    break;
   case 4:
    $subid=rand(25,32);
    break;
   case 5:
    $subid=rand(33,41);
    break;
   case 6:
    $subid=rand(42,49);
    break;
   case 7:
    $subid=rand(50,56);
    break;
   case 8:
    $subid=rand(57,64);
    break;
   case 9:
    $subid=rand(65,70);
    break;
  }
  mysql_query("INSERT INTO advert(author,name,type,text,time,catid,subid) VALUES('$author','$name','$type','$text','$time','$catid','$subid')") or die(mysql_error());
 }
 echo "$n adverts successfully added.";
}

这个功能的问题在于它永远不会加载.正如我注意到的那样,我的while循环导致它.如果我评论它,一切都很好.它必须从我的数据库中获取随机用户并将其设置为变量$ author.

Answer 1

问题是查询是在循环中,所以它每次都运行(所以你每次都从头开始).只需将mysql_query()部分移到while循环之前,然后将其存储在变量中:

$query = mysql_query("SELECT * FROM users");
while($row=mysql_fetch_array($query))