WeChat service account development-obtain user location information, obtain_PHP tutorial

WeChat service account development-obtain user location information, obtain

WeChat service account development-obtain user location information

In the development of WeChat public accounts, obtaining user location information is a very common functional requirement. Through the user's location information, you can do some map navigation and LBS-based marketing activities.
The following will introduce the principles and steps for WeChat service accounts to obtain user location information.

Principle

1. Location information acquisition process

2. Location information message

<xml><ToUserName><![CDATA[gh_public_member_account]]></ToUserName>
<FromUserName><![CDATA[oNEGGwGfl8f5xMEqVHToL63LDL40]]></FromUserName>
<CreateTime>1444035882</CreateTime>
<MsgType><![CDATA[event]]></MsgType>
<Event><![CDATA[LOCATION]]></Event>
<Latitude>28.701618</Latitude>
<Longitude>115.818817</Longitude>
<Precision>30.000000</Precision>
</xml>

Parameter description:

参数	描述
ToUserName	开发者微信号
FromUserName	发送方帐号（一个OpenID）
CreateTime	消息创建时间 （整型）
MsgType	消息类型，event
Event	事件类型，LOCATION
Latitude	地理位置纬度
Longitude	地理位置经度
Precision	地理位置精度

Steps to obtain location information

1. Apply for service account certification

Only certified service accounts can gain access to WeChat advanced services.

2. Enable user location information acquisition function

Developer Center -> Get user location

3. weiPHP geographical location information message processing.

1. Configure WeChat service account development interface

The WeChat server will push the interaction event messages between the user and WeChat to the SP server through this interface.

2. Process the location message in IndexAction of WeixinController.

Convert the xml message into a php array, and then take out the latitude and longitude information for use.

$content = file_get_contents ( 'php://input' );
$data = new \SimpleXMLElement ( $content );
foreach ( $data as $key => $value ) {
    $this->data [$key] = strval ( $value );
}
// to use data["longitude"]; data["latitude"].

LOCATION location information WeChat development

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