WeChat service account development-obtaining user location information

WeChat service account development-obtaining 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></tousername>
<fromusername></fromusername>
<createtime>1444035882</createtime>
<msgtype></msgtype>
<event></event>
<latitude>28.701618</latitude>
<longitude>115.818817</longitude>
<precision>30.000000</precision>
</xml>

Parameter description:

Parameter	Description
ToUser Name	Developer WeChat ID
FromUserName	Sender account (an OpenID)
CreateTime	Message creation time (integer)
MsgType	Message type, event
Event	Event type, LOCATION
Latitude	Geographical location latitude
Longitude	Geographical location longitude
Precision	Geographical location accuracy

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 -> Obtain user location

3. weiPHP location information message processing.

1. Configure the 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

The above introduces the development of WeChat service account-obtaining user location information, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.