如何使用PHP開發公眾號的自訂選單功能

<?php
$appId = 'your_app_id'; // 公众号的AppId
$appSecret = 'your_app_secret'; // 公众号的AppSecret

$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appId&secret=$appSecret";
$result = file_get_contents($url);
$data = json_decode($result, true);

$accessToken = $data['access_token'];
?>

<?php
// 菜单内容
$menuData = '{
  "button":[
    {
      "name":"菜单1",
      "sub_button":[
        {
          "type":"click",
          "name":"子菜单1",
          "key":"click_button_1"
        },
        {
          "type":"view",
          "name":"子菜单2",
          "url":"https://www.example.com"
        }
      ]
    },
    {
      "name":"菜单2",
      "sub_button":[
        {
          "type":"view",
          "name":"子菜单3",
          "url":"https://www.example.com"
        },
        {
          "type":"view",
          "name":"子菜单4",
          "url":"https://www.example.com"
        }
      ]
    },
    {
      "type":"view",
      "name":"菜单3",
      "url":"https://www.example.com"
    }
  ]
}';

// 创建菜单
$url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=$accessToken";
$result = httpPost($url, $menuData);
$data = json_decode($result, true);
if ($data['errcode'] == 0) {
  echo '创建菜单成功';
} else {
  echo '创建菜单失败：' . $data['errmsg'];
}

// HTTP POST请求函数
function httpPost($url, $data)
{
  $ch = curl_init();

  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

  $output = curl_exec($ch);
  curl_close($ch);

  return $output;
}
?>

<?php
$url = "https://api.weixin.qq.com/cgi-bin/menu/get?access_token=$accessToken";
$result = file_get_contents($url);
$menuData = json_decode($result, true);

// 打印菜单内容
print_r($menuData);
?>