可以将Drupal db_query的结果转换为PHP数组吗？

Question

在Drupal中,我可以执行如下SQL:

$query_object = db_query("SELECT * FROM {nodes}");

如果我知道查询只返回一个结果(所以只有1行和1列),我可以直接获取它:

$result = db_result($query_object);

如果我得到了多个结果,我需要使用以下内容循环它们:

$rows[] = array();
while (($row = db_fetch_object($query_object) != FALSE) {
  $rows[] = $row;
}

我想知道是否有更简单的方法吗？有没有办法可以将所有结果转换为带有单个语句的数组？或者不是那样工作,因为db_result返回一个类似游标的对象,每次只能获取一行？

Answer 1

不在Drupal 6中.

在Drupal 7中,有一些fetch方法可以帮助避免这样的循环.来自http://drupal.org/node/310072:

<?php
// Retrieve all records into an indexed array of stdClass objects.
$result->fetchAll();

// Retrieve all records into an associative array keyed by the field in the result specified.
$result->fetchAllAssoc($field);

// Retrieve a 2-column result set as an associative array of field 1 => field 2.
$result->fetchAllKeyed();
// You can also specify which two fields to use by specifying the column numbers for each field
$result->fetchAllKeyed(0,2); // would be field 0 => field 2
$result->fetchAllKeyed(1,0); // would be field 1 => field 0

// Retrieve a 1-column result set as one single array.
$result->fetchCol();
// Column number can be specified otherwise defaults to first column
$result->fetchCol($column_index);
?>

Answer 2

在Drupal 7中,您还可以使用:

db_query('QUERY')->fetchAll(PDO::FETCH_ASSOC);