Question

您好，我正在使用mysqli_fetch_assoc（）从数据库中获取数据并获得此结果

Array
(
    [poi_id] => 1
    [created_id] => 1
    [tour_id] => 1
    [poi_title] => Kankariya Lake
    [poi_description] => Kankariya lake is a kankariya lake.
    [poi_category] => Historical
    [poi_base_price] => 10
    [poi_type] => driving
    [poi_address] => Kankaariya lake near maninagar
    [poi_city] => Ahmedabad
    [poi_state] => Gujaray
    [poi_country] => India
    [poi_latitude] => 23.006353
    [poi_longitude] => 72.601181
    [created_by] => Admin
    [status] => 1
    [time] => 2019-03-06 15:14:25
    [distance] => 7.981589182296636
)
Array
(
    [poi_id] => 2
    [created_id] => 1
    [tour_id] => 2
    [poi_title] => Kankariya Lake
    [poi_description] => Kankariya lake is a kankariya lake.
    [poi_category] => Historical
    [poi_base_price] => 10
    [poi_type] => driving
    [poi_address] => Kankaariya lake near maninagar
    [poi_city] => Ahmedabad
    [poi_state] => Gujaray
    [poi_country] => India
    [poi_latitude] => 23.006353
    [poi_longitude] => 72.601181
    [created_by] => Admin
    [status] => 1
    [time] => 2019-03-07 16:51:11
    [distance] => 7.981589182296636
)
Array
(
    [poi_id] => 3
    [created_id] => 1
    [tour_id] => 2
    [poi_title] => Kankariya Lake
    [poi_description] => Kankariya lake is a kankariya lake.
    [poi_category] => Historical
    [poi_base_price] => 10
    [poi_type] => driving
    [poi_address] => Kankaariya lake near maninagar
    [poi_city] => Ahmedabad
    [poi_state] => Gujaray
    [poi_country] => India
    [poi_latitude] => 23.006353
    [poi_longitude] => 72.601181
    [created_by] => Admin
    [status] => 1
    [time] => 2019-03-07 17:06:44
    [distance] => 7.981589182296636
)

所以现在我想在for循环中访问垂直数组元素，以便如何访问该元素我想将纬度和经度与数组的所有其他纬度进行比较 我更新的代码

while ($poi_array = mysqli_fetch_assoc($qry_res)) 
{
    $poi_id=$poi_array['poi_id'];
    $new[]=$poi_array;
    //print_r($new);
    $lat1=$poi_array['poi_latitude'];
    $lon1=$poi_array['poi_longitude'];  
    //echo $new['poi_longitude'][1];

    $theta = $lon1 - $lon2;
    $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) +  cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
    $dist = acos($dist);
    $dist = rad2deg($dist);
    $miles = $dist * 60 * 1.1515;
    $km= $miles * 1.609344;
    $meter=$km*1000;
    //echo round($meter);
    if($meter>1000)
    {                   
        $response2['success'] = true;
        $response2['message'] = "Pointof Interest list successfully fetched";
    }
    $fetch_media="SELECT * FROM poito_poi_media WHERE poi_id='".$poi_id."'";
    $media_qry_res = mysqli_query($con,$fetch_media);
    if (mysqli_num_rows($media_qry_res) > 0) 
    {
        while ($media_array = mysqli_fetch_assoc($media_qry_res)) 
        {
            $response4['media_id'] = $media_array['media_id'];
            $response4['image'] = $media_array['poi_image'];
            $response4['video'] = $media_array['poi_video'];
            $response4['ar'] = $media_array['poi_ar'];
            $response5[]=$response4;
            $response6['media_array']=$response5;
        }
    }
    else
    {
        $response6['media_array']=null;
    }
    $response['poi_id'] = $poi_array['poi_id'];
    $response['poi_title'] = $poi_array['poi_title'];
    $response['poi_description'] = $poi_array['poi_description'];
    $response['poi_category'] = $poi_array['poi_category'];
    $response['poi_base_price'] = $poi_array['poi_base_price'];
    $response['poi_type'] = $poi_array['poi_type'];
    $response['poi_address'] = $poi_array['poi_address'];
    $response['poi_city'] = $poi_array['poi_city'];
    $response['poi_state'] = $poi_array['poi_state'];
    $response['poi_country'] = $poi_array['poi_country'];
    $response['poi_latitude'] = $poi_array['poi_latitude'];
    $response['poi_longitude'] = $poi_array['poi_longitude'];
    unset($response5);
    $response['media_array'] = $response6['media_array'];

    $response3[]=$response;
    $response2['data']=$response3;
}

如果数组中其他元素的距离在1000米之内，则仅给出一个元素的响应，而无需在数组中添加其他数据

这意味着如果一个地方多次出现，那么这也是placeinfo也会删除同一地方，那么我们只需要显示一个地方即可

Answer 1

尝试一下：

while ($row = mysql_fetch_assoc($result)) {
    $rows[] = $row;
}

var_dump($rows);
//You can remove this
//it's just so that you can see the contents of the $row array

然后，您将可以遍历$rows数组以查找所需的任何值。您可以像这样将$rows放入foreach()循环中：

foreach($rows as $row){
    //$row['poi_latitude']
    //$row['poi_longitude']
}

如何在PHP中访问多维数组？

1 个答案: