将mysql行数据存储到php变量名称和值中

Question

我需要帮助将sql查询中的值存储到变量中。问题是为了得到适当的值，我写了一个很长的UNION查询。只有两列，并没有多少结果。理想情况下，我想为每行创建一个变量，其中变量名称是第一列的结果，该变量的相应值将是第二列的结果。

这里是联合查询：

SELECT 'mon_m' as shift, count(mon_m) as count 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND mon_m <> '' 

UNION 

SELECT 'mon_a', COUNT(mon_a) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND mon_a <> '' 

UNION 

SELECT 'mon_n', COUNT(mon_n) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND mon_n <> '' 

UNION 

SELECT 'tue_m', count(tue_m) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND tue_m <> '' 

UNION 

SELECT 'tue_a', COUNT(tue_a) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND tue_a <> '' 

UNION 

SELECT 'tue_n', COUNT(tue_n) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND tue_n <> '' 

UNION 

SELECT 'wed_m', count(wed_m) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND wed_m <> '' 

UNION 

SELECT 'wed_a', COUNT(wed_a) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND wed_a <> '' 

UNION 

SELECT 'wed_n', COUNT(wed_n) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND wed_n <> '' 

UNION 

SELECT 'thu_m', count(thu_m) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND thu_m <> '' 

UNION 

SELECT 'thu_a', COUNT(thu_a) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND thu_a <> '' 

UNION 

SELECT 'thu_n', COUNT(thu_n) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND thu_n <> '' 

UNION 

SELECT 'fri_m', count(fri_m) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND fri_m <> '' 

UNION 

SELECT 'fri_a', COUNT(fri_a) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND fri_a <> '' 

UNION 

SELECT 'fri_n', COUNT(fri_n) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND fri_n <> '' 

UNION 

SELECT 'sat', count(sat) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND sat <> '' 

UNION 

SELECT 'sun', COUNT(sun) 
FROM schedule 
WHERE week_of = '2013-12-23' 
AND sun <> '' 

这里的数据想什么小样本：

ColumnA ColumnB 
mon_m  1 
mon_a  5 
mon_n  6 
tue_m  3 
tue_a  6 
tue_n  2 

我需要使用PHP这样我就可以建一个表来访问这些值。我想使用变量访问它们。例如：

echo $mon_m 
echo $mon_a 
echo $mon_n 

凡

$mon_m = 1 
$mon_a = 5 
$mon_n = 6 

我已经准备好去，需要一些帮助，让这些值到PHP变量的SQL语句。

Answer 1

一旦你得到了MySQL查询的结果，可以通过提取

extract($results); 

这将为阵列中的每个关键变量运行它，所以一定要确保你的结果会返回一个关联数组。有关更多详细信息，请参阅http://www.php.net/manual/en/function.extract.php。

Answer 2

为什么不使用数组？

$output_array = array(
    "mon_m" => 1, 
    "mon_a" => 2, 
    "mon_n" => 3 
); 

然后输出他们像这样

echo $output_array['mon_m']; 

而且，你的结果可以更加方便地在这种情况下，MySQL的。

$r = mysql_query("select * from table where columnB=" . $var); 
while($row = mysql_fetch_assoc($r)){ 
    $column = $row['columnA']; 
    $output_array[$column] = $row['columnB']; 
} 

然后你就可以做各种东西，有了它，通过输出表循环，检查值，钥匙等与你提出什么，我不认为这将是很容易跟踪创建的变量，或者与他们一起工作非常容易。

编辑::

这是一个更好的（？）方法来做到这一点。也许格外过于复杂的满足您的需求，但与意见建议你使用PDO ...

function getObject($sql){ 
    $dbCon = new object(); 
     // building data source name 
     $dsn = 'mysql:host=' . DB_HOST . 
       ';dbname=' . DB_NAME . 
       ';connect_timeout=15'; 

     $dbCon->dbh = new PDO($dsn, DB_USER, DB_PASS); 

    try { 

     $stmt = $dbCon->dbh->prepare($sql); 

     $stmt->setFetchMode(PDO::FETCH_OBJ); 

     if($stmt->execute()){ 
       return (array) $stmt->fetchObject(); 
     } else { 
      return false; 
     } 
    } 

    catch(PDOException $e) { 
     $_messages[] = $e->getMessage(); 
    } 
} 

而且使用这样的

$my_array = getObject($your_query); 

if(!empty($my_array['mon_m'])){ 
    echo $my_array['mon_m']; 
}