PHP解析sql结果集

Question

我想解析一个SQL结果集，我遇到了多个问题。

 foreach ($rows as $key => $row) { 
      die(print(gettype($row))); // DIE 1 
      if (is_array($row)) { 
       foreach ((array)$row as $k => $r) { 
        die(print_r($r));  // DIE 2 
        if (!in_array($r['proposal'], $proposals)) { 
         array_push($proposals, $r['proposal']); 
        } 
        if (!in_array($r['question'], $scorequestions) && $r['type'] == 'score') { 
         array_push($scorequestions, $r['question']); 
        } 
        if (!in_array($r['question'], $recommendquestions) && $r['type'] == 'recommend') { 
         array_push($recommendquestions, $r['question']); 
        } 
       } 
      } 
     } 

我$行是：（http://i.imgur.com/YUpZvBx.png）

+----------+--------+----------+-----------+----------+---------+-----------+-------------+------+ 
| question | title | campaign | type  | proposal | avg  | recommend | conditional | cnt | 
+----------+--------+----------+-----------+----------+---------+-----------+-------------+------+ 
|  101 | Title1 |  104 | score  |  38 | 6.6667 |   0 |   0 | 3 | 
|  101 | Title2 |  104 | score  |  39 | 9.6667 |   0 |   0 | 3 | 
|  101 | Title3 |  104 | score  |  40 | 8.0000 |   0 |   0 | 2 | 
|  101 | Title4 |  104 | score  |  41 | 3.0000 |   0 |   1 | 2 | 
|  101 | Title5 |  104 | score  |  42 | 9.0000 |   0 |   0 | 1 | 
|  101 | Title6 |  104 | score  |  43 | 9.0000 |   0 |   0 | 1 | 
|  101 | Title7 |  104 | score  |  44 | 7.6667 |   0 |   0 | 3 | 

$行是一个SQL结果集。 DIE 1 print告诉我$ row是一个数组，但是is_array（）函数认为它不是数组。

如果我跳过，如果循环（其注释掉），并运行内部foreach循环，模具2给我：

Array ([question] => 105 [campaign] => 104 [type] => recommend [proposal] => 42 [avg] => -1.0000 [recommend] => 1 [conditional] => 1 [cnt] => 1 [title] => Title5 [amount] => 300 [theme] => offline) 1 

但后来我得到$ R [“建议”的非法串偏移误差]。不知道我哪里错了。在发布之前，我已阅读了多个SO线程。

Answer 1

您直接在$ rows上迭代，而$ rows是具有包含实际数据的$ rows成员的对象。所以你应该迭代外循环中的$ rows->行。