The principle and procedure of obtaining the location information of the user by WeChat, obtaining the location _php tutorial

Get geo-location information by the principles and procedures

In the public service number development requirements often have access to user location information function, through the user's location information, can do some map navigation, and based on LBS marketing activities.

The following is to introduce the service number to obtain the User location information principles and procedures.

Principle

1. Location Information Acquisition process

2. Location information messages

 
  
  
   gh_public_member_account
  
   
  
   oNEGGwGfl8f5xMEqVHToL63LDL40
  
   
  
   
   
  
   
  1444035882
   
    28.701618 event
  
   
  
    LOCATION
  
   
  
   
  
   
  
   
    
   115.818817
  
   
  
   
    
   30.000000
  
   
 
  

Parameter description:

parameter	description
tousername	developer number
fromusername	Sender account (one OpenID)
createtime	message creation time (integral type)
msgtype	message type, event
event	event type, location
latitude	geographic latitude
longitude	geographic longitude
Precision	Location accuracy

Get location Information step

1. Application for service number certification

Access to advanced services can only be obtained if the service number is certified.

2. Turn on the user location information acquisition function

Developer Center, get the user's location

3. weiphp location information message processing.

1. Configure the Service number development interface

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

2. Process the location message in the Weixincontroller indexaction.

Convert the XML message into a PHP array, and then remove the latitude and longitude information for use.

$content = file_get_contents (' php://input '); $data = new \simplexmlelement ($content); foreach ($data as $key + = $v Alue) {$this->data [$key] = Strval ($value);} To use data["longitude"]; data["Latitude"].

The above through the text and graphics to show you how to obtain the user's geographical location information principles and procedures, I hope you like.

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