用PHP实现微信消息群发分组管理

<?php
//接收access_token
$access_token = file_get_contents(‘https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APP_SECRET');
$access_token_array = JSON_decode($access_token,true);

//获取用户分组
$user_group_url = "Https://api.weixin.qq.com/cgi-bin/groups/get?access_token=".$access_token_array['access_token'];
$user_str = file_get_contents($user_group_url);

//创建群组
$data = '{"group": {"name": "my_group"}}';
$creat_url = 'https://api.weixin.qq.com/cgi-bin/groups/create?access_token='.$access_token_array['access_token'];
$result_str = http_post_data($creat_url, $data);

//查询群组
$group_url = "https://api.weixin.qq.com/cgi-bin/groups/getid?access_token=".$access_token_array['access_token'];
$group_str = file_get_contents($group_url);

//发送消息
$post_data = '{
    "filter":{
        "is_to_all":false,
        "group_id":"GROUP_ID"
    },
    "text":{
        "content":"MESSAGE_CONTENT"
    },
    "msgtype":"text"
}';
$message_url = "https://api.weixin.qq.com/cgi-bin/message/mass/sendall?access_token=".$access_token_array['access_token'];
$result = http_post_data($message_url, $post_data);

//发送Post请求
function http_post_data($url, $data_string) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json', 'Content-Length: '.strlen($data_string)));
    ob_start();
    curl_exec($ch);
    $return_content = ob_get_contents();
    ob_end_clean();
    $return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    return array($return_code, $return_content);
}
?>