/**
* Fetches results from the database with each row keyed according to preference.
* The 'key' parameter provides the column name with which to key the result.
* For example, calling fetchAllKeyed('SELECT item_id, title, date FROM table', 'item_id')
* would result in an array keyed by item_id:
* [$itemId] => array('item_id' => $itemId, 'title' => $title, 'date' => $date)
*
* Note that the specified key must exist in the query result, or it will be ignored.
*
* @param string SQL to execute
* @param string Column with which to key the results array
* @param mixed Parameters for the SQL
*
* @return array
*/
public function fetchAllKeyed($sql, $key, $bind = array())
{
$results = array();
$i = 0;
$stmt = $this->_getDb()->query($sql, $bind, Zend_Db::FETCH_ASSOC);
while ($row = $stmt->fetch())
{
$i++;
$results[(isset($row[$key]) ? $row[$key] : $i)] = $row;
}
return $results;
}
以上代碼片段取自xenforo系統。試圖理解:從數據庫獲取結果,根據首選項鍵入每行
問:
雖然有此功能的意見,仍然不知道如何做「關鍵」參數的工作? 在評論,有人說:
* For example, calling fetchAllKeyed('SELECT item_id, title, date FROM table', 'item_id')
* would result in an array keyed by item_id:
* [$itemId] => array('item_id' => $itemId, 'title' => $title, 'date' => $date)
so if the table looks like this:
item_id title date
1 book 2000
2 car 2000
3 laptop 2001
...
所以會是什麼結果呢?
更多細節,所以如果我要訪問的項目:標題:汽車,我應該做的[2] [「標題」],對不對? – user2507818
@ user2507818是的。 :) –