帮我解释下这段代码的意思，谢谢

Question

<?php    
                $xsoudh="id=$id";
$next=$ljjl*10;
$n=$ljjl-1;
$m=$ljjl+1;
                $prev_page=$page-10;
if ($ljjl==0){ echo "";
}else{
                     echo "<a href='$PATH_INFO?vv=0&ljjl=0&page=1&$xsoudh'>首页</a>&nbsp;";
 $ccc=$vv-10;
                     echo "<a href='$PATH_INFO?vv=$ccc&ljjl=$n&page=$prev_page&$xsoudh'>上十页</a>";
}?>
                  <?php
          for ($j=1;$j<=$page_count;$j++) {
       $pnext=$next+$j;
       if ($mm==10){  break; }
   if ($mm>$page_count){ break;}
   if ($page_count-$vv<10){
      if ($mm>=$page_count-$vv){break;}
} ?>
                  <?php
                        echo "<a href='$PATH_INFO?vv=$vv&ljjl=$ljjl&page=$pnext&$xsoudh'> $pnext </a>";
                       $mm=$mm+1;
           }

Answer 1

LZ你别发文本可以么，用代码的形式发咯，“$ljjl”这个真心看不懂啊。