Question

我从该页的索引中拿到档案尺寸,该指数为1024KB,我希望它印刷1MB,而不是1024KB。 (此处完全是注解)

我这样做:

if($row[2]==1) // Rapidshare Check
{
  $index=getpage($row[1]);
  if(strpos($index,"FILE DOWNLOAD")===false) //check if page contains the word file download  if not = bad link
  {
    mysql_query("UPDATE `v2links` SET `checked`= -1 ,`lastcheck`=NOW() WHERE `id`=".$row[0]);
    print "bad link
";
    logstr("log-c.txt","bad link
");
   }
   else
   {

    preg_match("**/([^/|#<(>;s][0-9]*[s][KB]{2})/**",$index,$match);

     $fsize=$match[1];



  print $fsize."
";
  logstr("log-c.txt","bad link
");
  //logstr("log-c.txt","$caption | $fsize
");
  mysql_query("UPDATE `v2links` SET `checked`= 1 ,`fsize`= $fsize ,`lastcheck`=NOW() WHERE `id`=".$row[0]);
  unset($match);
  }
 }

增编

Answer 1

你们想要转换是多么准确?

s/0*([0-9]+)[0-9]{3}K/1M/g

超过四位或四位以上数字的最近三位数......但该数字为缩略语,甚至t consider math。 (例如,1999K-> 1M)

一种可能更好的方法是:s/K/000/g和s/M/000000/g,将其变为(精减)数量的tes,然后根据你的愿望加以转换。

The best possible method would be to process it, if it has a M multiply by 1024*1024; if it has K multiply by 1024. (if it has G, multiply by 1024*1024*1024). Then, process the resulting size however you re trying to. --Note that it d be a good plan to store file size as an integer, rather than a string.

For processing and output, a series of if s are probably good enough, and you can set precise tollerances for how big something must be to be displayed as M instead of K. --Or if you just want M, there s no if, and you just divide by 1024*1024.

友情链接