Question

嗨，从查询中执行'order by'而不执行另一次查询的最佳方法是什么？假设我有一个搜索查询，当我必须使用表单找到名字或姓氏时，例如：

     //Array for storing WHERE part of query
   $where=array();  

   if(!empty($name)) AND !empty($surname)){
         $where[]="Name LIKE '%$name%'" .
            "AND Surname LIKE '%$surname%'";
   }
   elseif(!empty($name)){
        $where[]="Name LIKE '%$name%'";
   }
   elseif(!empty($surname)){
       $where[]="Surname LIKE '%$surname%'";
   }

   $where = implode(' AND ', $where);

   $sql="SELECT Name,Surname FROM TABLE WHERE $where ORDER BY Name DESC";

   $res = mysql_query($sql);

   while ($row = mysql_fetch_array($res, MYSQL_NUM)) {
           $name    = $row[0];
           $surname    = $row[1];
           echo"$name";
           echo"$surname";


    }

如何在搜索“Name LIKE％surname％”后，在ASC模式下显示名称或姓氏（ORDER BY Name ASC），而不再执行SQL查询？我希望例如当我搜索包含“ich”字的名称以这种方式获得列表时：

  MICHAEL
  PICHAEL
  XICHAEL
    => the ASC mode
  XICHAEL
  PICHAEL
  MICHAEL
   => the DESC mode

Answer 1

我真的不认为我正确地理解了你的问题，但是我想在这里走出困境并猜你只想通过两个不同的栏目订购？

 $sql="SELECT Name,Surname FROM TABLE WHERE $where ORDER BY Name DESC, Surname ASC";

通过查询字符串中额外"的方式

此外，您可能希望使用mysql_fetch_assoc代替mysql_fetch_array

这只是我现在的挑剔......而不是使用：

    echo"$name";
    echo"$surname";

你可以写：

echo $name;
echo $surname;

Answer 2

Arr你在谈论像这样颠倒数组的顺序吗？

<?php

  //Array for storing WHERE part of query
   $where=array();  

   if(!empty($name) && !empty($surname)){
         $where[]="Name LIKE '%$name%'" .
            "AND Surname LIKE '%$surname%'";
   }
   elseif(!empty($name)){
        $where[]="Name LIKE '%$name%'";
   }
   elseif(!empty($surname)){
       $where[]="Surname LIKE '%$surname%'";
   }

   $where = implode(' AND ', $where);

   $sql="SELECT Name,Surname FROM TABLE WHERE $where ORDER BY Name";

   $res = mysql_query($sql);

    $names = array();
    $surnames = array();
    $wholeNames = array();

    $x='0';
   while ($row = mysql_fetch_array($res)) {

           if(!empty($row['Name'])){
                $names[$x] = $row['Name'];
           }
           if(!empty($row['Surname'])){
                $surnames[$x] = $row['Surname'];
           }

           if(!empty($row['Name'])&&!empty($row['Surname'])){
             $wholeNames[$x] = $row['Name'].' '.$row['Surname'];
           }
          $x++; 
    }
print "<pre>\n";
print_r ($names);
print_r ($surnames);
print_r ($wholeNames);
print "</pre>\n";

$reversed_names=array_reverse($names);
$reversed_surnames=array_reverse($surnames);
$reversed_wholeNames=array_reverse($wholeNames);

print "<pre>\n";
print_r ($reversed_names);
print_r ($reversed_surnames);
print_r ($reversed_wholeNames);
print "</pre>\n";


?>

需要注意的是，如果你使用喜欢通配符，那么搜索“艺术”会匹配Bart，Arthur，Carter以及任何其他包含“Art”的单词。

按asc或desc搜索查询顺序

2 个答案: