通过数字索引获取ASSOC数组值

时间:2014-02-18 13:06:49

标签: php arrays database codeigniter associative-array

https://www.codeigniter.com/user_guide/database/results.html的所有Codeigniter查询示例中,我发现必须知道该字段的名称才能获得其值。

$query = $this->db->query("SELECT title,name,body FROM table");

foreach ($query->result() as $row)
{
  echo $row->title;
  echo $row->name;
  echo $row->body;
}

例如,如果我想获得title,我会执行row->title。有没有办法让title使用索引,例如比如$row[0]

3 个答案:

答案 0 :(得分:3)

使用result_array函数将查询结果作为纯数组返回

$query = $this->db->query("SELECT title,name,body FROM table");
    $result = $query->result_array();
    foreach($result as $res){
      echo $res['title'];
      echo $res['name'];
      echo $res['body'];
    }

如果你想通过索引访问,那么使用array_values:

    $result = $query->result_array();
    foreach($result as $res){
      $r = array_values($res);
      echo $r[0];
      echo $r[1];
      echo $r[2];
    }

答案 1 :(得分:0)

<?php
  $result = $subject_code->result_array();
   foreach($result as $res){
   $r = array_values($res);
   print_r($r);
   }
?>
I applied the above code but in o/p index of each value is comming 0
o/p- Array ( [0] => 201 ) Array ( [0] => 202 ) Array ( [0] => 203 ) Array ( [0] => 204 ) Array ( [0] => 205 ) 

答案 2 :(得分:0)

稍微优雅一点的方式:

$data = $this->db->query("SELECT title,name,body FROM table")->result_array();

array_walk($data,function(&$row) {
    $row = array_values($row);
});

您有带有数字索引的$ data数组。