FoundPHP WeChat: Acquiring users

English

#### FoundPHP WeChat: Acquiring users
This article will describe in detail how to set the menu on the WeChat official account and combine it with the project to obtain access to user information.
<code>Note: The unique identifier of WeChat accessing users is openID, and all interactions between WeChat and users need to use openID.</code>

###### WeChat menu settings
1.Use WeChat public platform "custom menu" settings
![](data/files/edit/21/01/30/210130_16333040.png)
Enter the WeChat official account platform->custom menu column, the left side is the official account platform simulation page, and the right side is the menu setting.

Click the + sign to add a first-level menu, or continue to add a second-level menu.
![](data/files/edit/21/01/30/210130_16364113.png)

On the right side, you can rename each menu item and set the menu function.
![](data/files/edit/21/01/30/210130_16378186.png)

The menu types include sending messages, redirecting webpages, and redirecting applets. This article mainly explains how to combine the types of redirected webpages with items.
![](data/files/edit/21/01/30/210130_16391598.png)

Select the menu type as the "redirect page" type, and enter the item WeChat access entry in the "page address"：https://domain name/auth.php?t=project ID；
 <code>E.g：https://www.foundphp.comauth.php?t=one；The "t" parameter in the address is the unique identification of the function, it is a number</code>

2.Using the developer mode settings menu.
When using the developer mode, the custom menu function will be invalid
```php
<?php
//instantiate WeChat plug-in class
$wx		= load('class/wechat/service','FoundPHP_wechat_service',$config['wx']);
//define the menu array
$menu_ary	= array(
	//Level 1 menu setting
	array(
		'type'	=> 'view',//This type is a jump link type.
		'name'	=> 'about FoundPHP',
		'url'	=> 'https://www.foundphp.com/auth.php?t=1',//jump address
	),
	//Secondary menu settings
	array(
		'type'	=> 'view',
		'name'	=> 'FoundPHP application',
		'sub_button' => array(
			array(
				'type'	=> 'view',//This type is a jump link type.
				'name'	=> 'FoundPHP manual',
				'url'	=> 'https://www.foundphp.com/?m=manual',
			),
			array(
				'type'	=> 'view',
				'name'	=> 'FoundPHP application',
				'url'	=> 'https://www.foundphp.com/?m=application',
			),
		),
	),
);
//Invoking the method of creating a menu
$res = $wx->wx_menu_set($menu_ary);
//Successfully established
?>
```

3.Geting WeChat user information.
After completing the menu settings, create it under the framework plugin/model/auth/ path <code>foundphp_wechat_t.php [E.g：foundphp_wechat_1.php]</code>File, the program is written under this file.
```php
//foundphp_wechat_1.php document content
<?php
$title	= 'FoundPHP to get WeChat users';//Function title, must be set.
//You can jump to other functions under the framework, for example: users who come in this link will enter the page about FoundPHP.
msg('',"?m=wx_profile&a=about_us");
?>
```
Using session to obtain WeChat user information. This information is global and can be obtained as long as the project is accessed through WeChat.
```php
<?php
// To get WeChat user information.
$wx_info	= session('wx_info');
/*
	wx_info information
		openid	WeChat user unique identification
		nickname	WeChat user nickname
*/
//If you need to get more user information, you can use openID to query the n_user_wechat table of the project
$wx_detail	= sql_select(array('table'=>'user_wechat','where'=>'openid="'.$wx_info['openid'].'"'));
/*
	$wx_detail information
		openid		WeChat user unique identification
		names		WeChat user nickname
		subscribe	Whether to subscribe to the official account
		face		WeChat user avatar
*/
?>
```