Question

如果数字（$ nm）下降，下面的代码将回显用户的位置在这个范围之间让我说我有$ nm =（10,4,3,3,1）的位置将分别是（员工，员工，员工，营销人员，员工）而不是（营销人员，员工，员工，员工，员工））我如何安排让营销人员先行（营销人员，员工，员工，员工，员工）。

$query = "SELECT DISTINCT username,num FROM user ORDER BY num DESC LIMIT 5";
$result = mysql_query ($query) or die('query error');
while( $line = mysql_fetch_assoc($result)){

$um = $line[username];
$nm = $line[num];

echo "name:$um";

if($nm <= 50){
echo "Position: president";
}else if($nm <= 40){
echo "Position: vice";
}else if($nm <= 30){
echo "Position: manager";
}else if($nm <= 20){
echo "Position: marketer";
}else if($nm <= 10){
echo "Position: staff";
}

Answer 1

while( $line = mysql_fetch_assoc($result)){
    $ums[] = $line[username];
    $nms[] = $line[num];
}

usort($nms);

foreach ($nms as $nm){
   if($nm <=  50){
      echo "Position: president";
   }else if($nm <= 40){
      echo "Position: vice";
   }else if($nm <= 30){
      echo "Position: manager";
   }else if($nm <= 20){
      echo "Position: marketer";
   }else if($nm <= 10){
      echo "Position: staff";
   }
}

Answer 2

usort可以解决您的问题

但不是你的if / else如果错了吗？

不应该吗？

if($nm <= 10){
  echo "Position: staff";
} else if($nm <= 20){
  echo "Position: marketer";
} else if($nm <= 30){
  echo "Position: manager";
} else if($nm <= 40){
  echo "Position: vice";
} else if($nm <=  50){
  echo "Position: president";
}

订购变量以从最高值到最低值显示

2 个答案: