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<?php
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$lang = isset($_GET['lg']) ? strtolower(trim($_GET['lg'], '"')) : 'en';
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$lang = ($lang === 'cn') ? 'cn' : 'en';
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$text = [
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    'en' => [
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        'title' => 'WeChat Mini Program QR Code Generator - API Parameters',
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        'base_params_title' => 'Base Parameters (Required for All Requests)',
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        'action_params_title' => 'Action: Generate QR Code (action=gen)',
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        'action_query_title' => 'Action: Query Remaining Quota (action=query)',
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        'return_fields_title' => 'Return Field Language (optional)',
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        'response_example_title' => 'Response Example (JSON)',
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        'example_title' => 'Example Requests',
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        'example1' => 'Generate QR Code (Interface B, with scene, custom width 500px)',
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        'example2' => 'Generate QR Code (Interface B, no scene, width a=280px)',
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        'example3' => 'Generate QR Code (Interface A, with scene, custom width 300px)',
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        'example4' => 'Generate QR Code (Interface C, width b=430px)',
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        'example5' => 'Query Remaining Quota (English)',
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        'example6' => 'Query Remaining Quota (Chinese)',
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        'interface_a_note' => 'Interface A (wxacode.get) - 100,000 limit, circular QR code',
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        'interface_b_note' => 'Interface B (wxacode.getUnlimited) - No limit, circular QR code, RECOMMENDED',
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        'interface_c_note' => 'Interface C (wxacode.createQRCode) - 100,000 limit, square QR code, NOT RECOMMENDED',
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        'width_note' => 'Width: a=280px, b=430px, c=1280px, or any number 280-1280',
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        'color_note' => 'line_color format: {"r":0,"g":0,"b":0} (RGB values 0-255)',
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        'env_note' => 'env_version: release (live) / trial (test) / develop (dev)',
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        'return_fields' => 'Return fields: code, msg, errcode, data, total, used, remaining, percent_used',
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        'return_fields_cn' => 'Return fields: 状态码, 消息, 错误码, 数据, 总数, 已用, 剩余, 使用百分比',
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        'lang_switch_en' => 'English',
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        'lang_switch_cn' => '中文',
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        'th_parameter' => 'Parameter',
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        'th_type' => 'Type',
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        'th_required' => 'Required',
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        'th_default' => 'Default',
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        'th_description' => 'Description',
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        'required' => 'required',
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        'optional' => 'optional',
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        'default' => 'default',
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        'desc_appid' => 'WeChat Mini Program AppID',
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        'desc_appsecret' => 'WeChat Mini Program AppSecret',
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        'desc_action' => 'gen = generate QR code, query = check remaining quota',
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        'desc_type' => 'a / b / c (lowercase)',
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        'desc_path' => 'Mini Program page path (without ?), e.g. pages/index/index',
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        'desc_scene' => 'Custom parameters (max 32 chars). For interface A: appended to path. For interface B: used as scene field. If empty, interface B defaults to 0.',
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        'desc_width' => 'Width: a=280px, b=430px, c=1280px, or any number 280-1280',
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        'desc_auto_color' => 'Auto configure line color (interface A/B)',
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        'desc_line_color' => 'line_color format: {"r":0,"g":0,"b":0} (RGB values 0-255) (interface A/B)',
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        'desc_is_hyaline' => 'Transparent background (interface A/B). Default: white (false)',
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        'desc_env_version' => 'env_version: release (live) / trial (test) / develop (dev) (interface B only)',
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        'desc_lg' => 'en = English field names, cn = Chinese field names',
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        'desc_action_query' => 'Set action=query to check remaining quota (no type or path needed)',
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        'width_out_of_range' => 'width must be between 280 and 1280 (or a/b/c)',
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        'width_invalid'      => 'width must be a/b/c or a number between 280 and 1280',
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        'missing_appid'      => 'appid and appsecret are required',
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        'invalid_action'     => 'action must be gen or query',
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        'missing_type'       => 'type (a/b/c) is required for generation mode',
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        'missing_path'       => 'path parameter is required',
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        'cache_open_fail'    => 'Unable to open cache file',
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        'token_network_fail' => 'Failed to get stable_token',
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        'token_fetch_fail'   => 'Failed to get access_token: ',
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        'file_lock_fail'     => 'Unable to acquire file lock',
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        'query_fail'         => 'Failed to query quota',
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        'wechat_error'       => 'WeChat API error: ',
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        'num_header_missing' => 'Num-Used header not available',
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        'missing_page_b'     => 'page parameter is missing for interface B',
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        'qrcode_generate_fail' => 'Failed to generate QR code: ',
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        'http_request_fail'  => 'Request failed, HTTP status: ',
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        'unknown_error'      => 'unknown error',
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        'example_req1' => '?appid={id}&appsecret={secret}&type=b&path=pages/index/index&scene=foo=bar&width=500',
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        'example_req2' => '?appid={id}&appsecret={secret}&type=b&path=pages/index/index&width=a',
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        'example_req3' => '?appid={id}&appsecret={secret}&type=a&path=pages/index/index&scene=foo=bar&width=300',
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        'example_req4' => '?appid={id}&appsecret={secret}&type=c&path=pages/index/index&scene=foo=bar&width=b',
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        'example_req5' => '?appid={id}&appsecret={secret}&action=query',
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        'example_req6' => '?appid={id}&appsecret={secret}&action=query&lg=cn',
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    ],
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    'cn' => [
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        'title' => '微信小程序码生成器 - 参数说明',
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        'base_params_title' => '基础参数（所有请求必填）',
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        'action_params_title' => '操作：生成二维码（action=gen）',
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        'action_query_title' => '操作：查询剩余额度（action=query）',
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        'return_fields_title' => '返回字段语言（可选）',
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        'response_example_title' => '返回示例 (JSON)',
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        'example_title' => '请求示例',
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        'example1' => '生成二维码（接口 B，带 scene，宽度自定义为 500px）',
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        'example2' => '生成二维码（接口 B，不带 scene，宽度使用代号 a=280px）',
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        'example3' => '生成二维码（接口 A，带 scene，宽度自定义为 300px）',
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        'example4' => '生成二维码（接口 C，宽度使用代号 b=430px）',
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        'example5' => '查询剩余额度（英文）',
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        'example6' => '查询剩余额度（中文）',
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        'interface_a_note' => '接口 A（wxacode.get）- 限制 10 万个，圆形菊花码',
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        'interface_b_note' => '接口 B（wxacode.getUnlimited）- 无限制，圆形菊花码，推荐使用',
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        'interface_c_note' => '接口 C（wxacode.createQRCode）- 限制 10 万个，普通方形码，不推荐',
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        'width_note' => '宽度：a=280px，b=430px，c=1280px，或任意 280-1280 的数字',
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        'color_note' => 'line_color 格式：{"r":0,"g":0,"b":0}（RGB 值 0-255）',
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        'env_note' => 'env_version：release（线上）/ trial（体验）/ develop（开发）',
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        'return_fields' => '返回字段：code, msg, errcode, data, total, used, remaining, percent_used',
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        'return_fields_cn' => '返回字段：状态码, 消息, 错误码, 数据, 总数, 已用, 剩余, 使用百分比',
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        'lang_switch_en' => 'English',
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        'lang_switch_cn' => '中文',
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        'th_parameter' => '参数名',
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        'th_type' => '类型',
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        'th_required' => '必填',
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        'th_default' => '默认值',
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        'th_description' => '说明',
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        'required' => '必填',
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        'optional' => '可选',
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        'default' => '默认',
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        'desc_appid' => '微信小程序 AppID',
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        'desc_appsecret' => '微信小程序 AppSecret',
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        'desc_action' => 'gen = 生成二维码，query = 查询剩余额度',
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        'desc_type' => 'a / b / c（小写）',
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        'desc_path' => '小程序页面路径（不含 ?），例如 pages/index/index',
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        'desc_scene' => '自定义参数（最大 32 个字符）。接口 A 拼接到 path；接口 B 作为 scene 字段；若为空，接口 B 默认填 0。',
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        'desc_width' => '宽度：a=280px，b=430px，c=1280px，或任意 280-1280 的数字',
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        'desc_auto_color' => '自动配置线条颜色（接口 A/B）',
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        'desc_line_color' => 'line_color 格式：{"r":0,"g":0,"b":0}（RGB 值 0-255）（接口 A/B）',
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        'desc_is_hyaline' => '透明背景（接口 A/B）。不传时默认为白色（false）',
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        'desc_env_version' => 'env_version：release（线上）/ trial（体验）/ develop（开发）（仅接口 B）',
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        'desc_lg' => 'en = 英文字段名，cn = 中文字段名',
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        'desc_action_query' => '设置 action=query 查询剩余额度（无需 type 和 path）',
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        'width_out_of_range' => 'width 必须在 280 到 1280 之间（或使用 a/b/c）',
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        'width_invalid'      => 'width 必须是 a/b/c 或 280~1280 之间的数字',
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        'missing_appid'      => '必须提供 appid 和 appsecret 参数',
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        'invalid_action'     => 'action 必须是 gen 或 query',
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        'missing_type'       => '生成模式必须提供 type（a/b/c 小写）',
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        'missing_path'       => '生成模式必须提供 path 参数',
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        'cache_open_fail'    => '无法打开缓存文件',
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        'token_network_fail' => '获取 stable_token 网络失败',
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        'token_fetch_fail'   => '获取 access_token 失败：',
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        'file_lock_fail'     => '无法获取文件锁',
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        'query_fail'         => '查询额度接口请求失败',
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        'wechat_error'       => '微信接口错误：',
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        'num_header_missing' => '未获取到 Num-Used 头，可能接口暂不支持',
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        'missing_page_b'     => '接口 B 缺少 page 参数',
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        'qrcode_generate_fail' => '生成二维码失败：',
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        'http_request_fail'  => '请求失败，HTTP状态码：',
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        'unknown_error'      => '未知错误',
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        'example_req1' => '?appid={id}&appsecret={secret}&type=b&path=pages/index/index&scene=foo=bar&width=500',
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        'example_req2' => '?appid={id}&appsecret={secret}&type=b&path=pages/index/index&width=a',
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        'example_req3' => '?appid={id}&appsecret={secret}&type=a&path=pages/index/index&scene=foo=bar&width=300',
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        'example_req4' => '?appid={id}&appsecret={secret}&type=c&path=pages/index/index&scene=foo=bar&width=b',
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        'example_req5' => '?appid={id}&appsecret={secret}&action=query',
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        'example_req6' => '?appid={id}&appsecret={secret}&action=query&lg=cn',
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    ]
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];
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$T = $text[$lang];
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$langMap = [
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    'en' => [
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        'code' => 'code', 'msg' => 'msg', 'errcode' => 'errcode',
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        'data' => 'data', 'total' => 'total', 'used' => 'used',
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        'remaining' => 'remaining', 'percent_used' => 'percent_used',
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    ],
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    'cn' => [
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        'code' => '状态码', 'msg' => '消息', 'errcode' => '错误码',
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        'data' => '数据', 'total' => '总数', 'used' => '已用',
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        'remaining' => '剩余', 'percent_used' => '使用百分比',
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    ]
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];
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$L = $langMap[$lang];
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function getRawPath() {
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    $uri = $_SERVER['REQUEST_URI'] ?? '';
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    if (preg_match('/[?&]path=([^&]*)/', $uri, $matches)) {
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        return urldecode($matches[1]);
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    }
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    return '';
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}
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$appid     = isset($_GET['appid']) ? trim($_GET['appid'], '"') : '';
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$appsecret = isset($_GET['appsecret']) ? trim($_GET['appsecret'], '"') : '';
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$type      = isset($_GET['type']) ? strtolower(trim($_GET['type'], '"')) : '';
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$path      = getRawPath();
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if (empty($path)) {
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    $path = isset($_GET['path']) ? trim($_GET['path'], '"') : '';
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}
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$scene      = isset($_GET['scene']) ? trim($_GET['scene'], '"') : '';
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$widthParam = isset($_GET['width']) ? trim($_GET['width'], '"') : '';
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$action    = isset($_GET['action']) ? strtolower(trim($_GET['action'], '"')) : 'gen';
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$auto_color  = isset($_GET['auto_color']) ? filter_var($_GET['auto_color'], FILTER_VALIDATE_BOOLEAN) : false;
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$line_color  = isset($_GET['line_color']) ? trim($_GET['line_color'], '"') : '';
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$is_hyaline  = isset($_GET['is_hyaline']) ? filter_var($_GET['is_hyaline'], FILTER_VALIDATE_BOOLEAN) : false;
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$env_version = isset($_GET['env_version']) ? trim($_GET['env_version'], '"') : 'release';
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$lineColorArray = null;
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if (!empty($line_color)) {
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    $decoded = json_decode($line_color, true);
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    if (is_array($decoded) && isset($decoded['r']) && isset($decoded['g']) && isset($decoded['b'])) {
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        $lineColorArray = $decoded;
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    }
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}
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$width = 430;
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if (empty($widthParam)) {
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    $width = 430;
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} elseif (preg_match('/^(a|b|c)$/i', $widthParam)) {
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    $widthMap = ['a' => 280, 'b' => 430, 'c' => 1280];
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    $width = $widthMap[strtolower($widthParam)];
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} elseif (is_numeric($widthParam)) {
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    $width = intval($widthParam);
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    if ($width < 280 || $width > 1280) {
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        die(json_encode([$L['code'] => -1, $L['msg'] => $T['width_out_of_range']], JSON_UNESCAPED_UNICODE));
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    }
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} else {
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    die(json_encode([$L['code'] => -1, $L['msg'] => $T['width_invalid']], JSON_UNESCAPED_UNICODE));
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}
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$showHelp = false;
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if (empty($appid) || empty($appsecret)) {
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    $showHelp = true;
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} elseif ($action !== 'gen' && $action !== 'query') {
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    $showHelp = true;
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} elseif ($action === 'gen' && (empty($type) || !in_array($type, ['a', 'b', 'c']))) {
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    $showHelp = true;
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} elseif ($action === 'gen' && empty($path)) {
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    $showHelp = true;
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}
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if ($showHelp) {
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    header('Content-Type: text/html; charset=utf-8');
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    echo '<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>' . $T['title'] . '</title>
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<style>
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body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;max-width:900px;margin:30px auto;padding:0 20px;background:#f7f8fa;color:#333}
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h1{font-size:24px;border-bottom:3px solid #07c160;padding-bottom:12px}
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h2{font-size:18px;margin:28px 0 12px 0;color:#07c160}
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table{width:100%;border-collapse:collapse;margin:12px 0 20px 0;font-size:14px;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 4px rgba(0,0,0,0.08)}
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th{background:#07c160;color:#fff;padding:10px 12px;text-align:left;font-weight:600;white-space:nowrap}
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td{padding:10px 12px;border-bottom:1px solid #f0f0f0}
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tr:last-child td{border-bottom:none}
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.req{color:#e74c3c;font-weight:600}
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.opt{color:#f39c12;font-weight:600}
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.note{font-size:13px;color:#666;background:#f0f9f3;padding:12px 16px;border-radius:6px;margin:6px 0 16px 0;border-left:4px solid #07c160}
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.example{background:#1e1e1e;color:#d4d4d4;padding:12px 16px;border-radius:6px;font-family:"Courier New",monospace;font-size:13px;overflow-x:auto;margin:4px 0 12px 0;white-space:pre-wrap;word-break:break-all}
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.lang-switch{float:right;font-size:14px;margin-top:6px}
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.lang-switch a{color:#07c160;text-decoration:none;margin-left:12px;font-weight:500}
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.lang-switch a:hover{text-decoration:underline}
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@media(max-width:600px){table{font-size:12px}td,th{padding:6px 8px}.example{font-size:11px;padding:8px 10px}}
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</style>
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</head><body>
240
<div class="lang-switch"><a href="?lg=en">' . $T['lang_switch_en'] . '</a> | <a href="?lg=cn">' . $T['lang_switch_cn'] . '</a></div>
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<h1>' . $T['title'] . '</h1>
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<h2>' . $T['base_params_title'] . '</h2>
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<table><tr><th>' . $T['th_parameter'] . '</th><th>' . $T['th_type'] . '</th><th>' . $T['th_required'] . '</th><th>' . $T['th_default'] . '</th><th>' . $T['th_description'] . '</th></tr>
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<tr><td><code>appid</code></td><td>string</td><td><span class="req">' . $T['required'] . '</span></td><td>—</td><td>' . $T['desc_appid'] . '</td></tr>
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<tr><td><code>appsecret</code></td><td>string</td><td><span class="req">' . $T['required'] . '</span></td><td>—</td><td>' . $T['desc_appsecret'] . '</td></tr>
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<tr><td><code>action</code></td><td>string</td><td><span class="opt">' . $T['optional'] . '</span></td><td><code>gen</code></td><td>' . $T['desc_action'] . '</td></tr>
247
</table>
248
<h2>' . $T['action_params_title'] . '</h2>
249
<table><tr><th>' . $T['th_parameter'] . '</th><th>' . $T['th_type'] . '</th><th>' . $T['th_required'] . '</th><th>' . $T['th_default'] . '</th><th>' . $T['th_description'] . '</th></tr>
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<tr><td><code>type</code></td><td>string</td><td><span class="req">' . $T['required'] . '</span></td><td>—</td><td>' . $T['desc_type'] . '<br><span style="font-size:12px;color:#666;">' . $T['interface_a_note'] . '<br>' . $T['interface_b_note'] . '<br>' . $T['interface_c_note'] . '</span></td></tr>
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<tr><td><code>path</code></td><td>string</td><td><span class="req">' . $T['required'] . '</span></td><td>—</td><td>' . $T['desc_path'] . '</td></tr>
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<tr><td><code>scene</code></td><td>string</td><td><span class="opt">' . $T['optional'] . '</span></td><td>—</td><td>' . $T['desc_scene'] . '</td></tr>
253
<tr><td><code>width</code></td><td>string/number</td><td><span class="opt">' . $T['optional'] . '</span></td><td><code>b</code> (430px)</td><td>' . $T['desc_width'] . '</td></tr>
254
<tr><td><code>auto_color</code></td><td>boolean</td><td><span class="opt">' . $T['optional'] . '</span></td><td><code>false</code></td><td>' . $T['desc_auto_color'] . '</td></tr>
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<tr><td><code>line_color</code></td><td>JSON</td><td><span class="opt">' . $T['optional'] . '</span></td><td>—</td><td>' . $T['desc_line_color'] . '</td></tr>
256
<tr><td><code>is_hyaline</code></td><td>boolean</td><td><span class="opt">' . $T['optional'] . '</span></td><td><code>false</code> (white)</td><td>' . $T['desc_is_hyaline'] . '</td></tr>
257
<tr><td><code>env_version</code></td><td>string</td><td><span class="opt">' . $T['optional'] . '</span></td><td><code>release</code></td><td>' . $T['desc_env_version'] . '</td></tr>
258
</table>
259
<h2>' . $T['action_query_title'] . '</h2>
260
<table><tr><th>' . $T['th_parameter'] . '</th><th>' . $T['th_type'] . '</th><th>' . $T['th_required'] . '</th><th>' . $T['th_default'] . '</th><th>' . $T['th_description'] . '</th></tr>
261
<tr><td><code>action</code></td><td>string</td><td><span class="opt">' . $T['optional'] . '</span></td><td><code>query</code></td><td>' . $T['desc_action_query'] . '</td></tr>
262
</table>
263
<h2>' . $T['return_fields_title'] . '</h2>
264
<table><tr><th>' . $T['th_parameter'] . '</th><th>' . $T['th_type'] . '</th><th>' . $T['th_required'] . '</th><th>' . $T['th_default'] . '</th><th>' . $T['th_description'] . '</th></tr>
265
<tr><td><code>lg</code></td><td>string</td><td><span class="opt">' . $T['optional'] . '</span></td><td><code>en</code></td><td>' . $T['desc_lg'] . '<br><span style="font-size:12px;color:#666;">' . $T['return_fields'] . '<br>' . $T['return_fields_cn'] . '</span></td></tr>
266
</table>
267
<h2>' . $T['example_title'] . '</h2>
268
<div class="note">' . $T['example1'] . '</div><div class="example">' . $T['example_req1'] . '</div>
269
<div class="note">' . $T['example2'] . '</div><div class="example">' . $T['example_req2'] . '</div>
270
<div class="note">' . $T['example3'] . '</div><div class="example">' . $T['example_req3'] . '</div>
271
<div class="note">' . $T['example4'] . '</div><div class="example">' . $T['example_req4'] . '</div>
272
<div class="note">' . $T['example5'] . '</div><div class="example">' . $T['example_req5'] . '</div>
273
<div class="note">' . $T['example6'] . '</div><div class="example">' . $T['example_req6'] . '</div>
274
<h2>' . $T['response_example_title'] . '</h2>
275
<div class="example">{"code":0,"data":{"total":100000,"used":5,"remaining":99995,"percent_used":"0.01%"}}</div>
276
<div style="margin-top:30px;padding-top:16px;border-top:1px solid #e0e0e0;font-size:13px;color:#999;text-align:center;">WeChat Mini Program QR Code Generator · ' . date('Y-m-d') . '</div>
277
</body></html>';
278
    exit;
279
}
280

281
if (empty($appid) || empty($appsecret)) {
282
    die(json_encode([$L['code'] => -1, $L['msg'] => $T['missing_appid']], JSON_UNESCAPED_UNICODE));
283
}
284
if (!in_array($action, ['gen', 'query'])) {
285
    die(json_encode([$L['code'] => -1, $L['msg'] => $T['invalid_action']], JSON_UNESCAPED_UNICODE));
286
}
287

288
function getAccessToken($appid, $appsecret) {
289
    global $T, $L;
290
    $cacheFile = __DIR__ . '/cache/token_' . md5($appid) . '.json';
291
    $cacheDir = dirname($cacheFile);
292
    if (!is_dir($cacheDir)) mkdir($cacheDir, 0755, true);
293
    $fp = fopen($cacheFile, 'c+');
294
    if (!$fp) die(json_encode([$L['code'] => -1, $L['msg'] => $T['cache_open_fail']], JSON_UNESCAPED_UNICODE));
295
    if (flock($fp, LOCK_EX)) {
296
        $data = [];
297
        if (filesize($cacheFile) > 0) {
298
            $content = fread($fp, filesize($cacheFile));
299
            $data = json_decode($content, true);
300
        }
301
        if ($data && isset($data['expires']) && $data['expires'] > time()) {
302
            flock($fp, LOCK_UN);
303
            fclose($fp);
304
            return $data['access_token'];
305
        }
306
        $url = "https://api.weixin.qq.com/cgi-bin/stable_token";
307
        $postData = ['grant_type' => 'client_credential', 'appid' => $appid, 'secret' => $appsecret, 'force_refresh' => false];
308
        $ch = curl_init();
309
        curl_setopt($ch, CURLOPT_URL, $url);
310
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
311
        curl_setopt($ch, CURLOPT_POST, true);
312
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($postData));
313
        curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
314
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
315
        $result = curl_exec($ch);
316
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
317
        curl_close($ch);
318
        if ($httpCode != 200) {
319
            flock($fp, LOCK_UN);
320
            fclose($fp);
321
            die(json_encode([$L['code'] => -1, $L['msg'] => $T['token_network_fail']], JSON_UNESCAPED_UNICODE));
322
        }
323
        $json = json_decode($result, true);
324
        if (!isset($json['access_token'])) {
325
            flock($fp, LOCK_UN);
326
            fclose($fp);
327
            die(json_encode([$L['code'] => -1, $L['msg'] => $T['token_fetch_fail'] . ($json['errmsg'] ?? $T['unknown_error']), $L['errcode'] => $json['errcode'] ?? 0], JSON_UNESCAPED_UNICODE));
328
        }
329
        $cache = ['access_token' => $json['access_token'], 'expires' => time() + 7200 - 60];
330
        ftruncate($fp, 0);
331
        rewind($fp);
332
        fwrite($fp, json_encode($cache));
333
        fflush($fp);
334
        flock($fp, LOCK_UN);
335
        fclose($fp);
336
        return $json['access_token'];
337
    } else {
338
        fclose($fp);
339
        die(json_encode([$L['code'] => -1, $L['msg'] => $T['file_lock_fail']], JSON_UNESCAPED_UNICODE));
340
    }
341
}
342

343
if ($action === 'query') {
344
    $access_token = getAccessToken($appid, $appsecret);
345
    $queryPath = 'pages/index/index?query=1';
346
    $url = "https://api.weixin.qq.com/wxa/getwxacode?access_token=" . $access_token;
347
    $postData = ['path' => $queryPath, 'width' => 280, 'auto_color' => false, 'is_hyaline' => false];
348
    $ch = curl_init();
349
    curl_setopt($ch, CURLOPT_URL, $url);
350
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
351
    curl_setopt($ch, CURLOPT_POST, true);
352
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($postData));
353
    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
354
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
355
    $headers = [];
356
    curl_setopt($ch, CURLOPT_HEADERFUNCTION, function($curl, $header) use (&$headers) {
357
        $len = strlen($header);
358
        $header = explode(':', $header, 2);
359
        if (count($header) < 2) return $len;
360
        $name = strtolower(trim($header[0]));
361
        $headers[$name] = trim($header[1]);
362
        return $len;
363
    });
364
    $response = curl_exec($ch);
365
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
366
    curl_close($ch);
367
    if ($httpCode != 200) die(json_encode([$L['code'] => -1, $L['msg'] => $T['query_fail']], JSON_UNESCAPED_UNICODE));
368
    $decoded = json_decode($response, true);
369
    if ($decoded && isset($decoded['errcode']) && $decoded['errcode'] != 0) {
370
        die(json_encode([$L['code'] => -1, $L['msg'] => $T['wechat_error'] . $decoded['errmsg'], $L['errcode'] => $decoded['errcode']], JSON_UNESCAPED_UNICODE));
371
    }
372
    $numUsed = isset($headers['num-used']) ? intval($headers['num-used']) : -1;
373
    $total = 100000;
374
    if ($numUsed >= 0) {
375
        $remaining = $total - $numUsed;
376
        $percent = round(($numUsed / $total) * 100, 2);
377
        echo json_encode([
378
            $L['code'] => 0,
379
            $L['data'] => [
380
                $L['total'] => $total,
381
                $L['used'] => $numUsed,
382
                $L['remaining'] => $remaining,
383
                $L['percent_used'] => $percent . '%'
384
            ]
385
        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
386
    } else {
387
        echo json_encode([$L['code'] => -1, $L['msg'] => $T['num_header_missing']], JSON_UNESCAPED_UNICODE);
388
    }
389
    exit;
390
}
391

392
if (empty($type) || !in_array($type, ['a', 'b', 'c'])) {
393
    die(json_encode([$L['code'] => -1, $L['msg'] => $T['missing_type']], JSON_UNESCAPED_UNICODE));
394
}
395
if (empty($path)) {
396
    die(json_encode([$L['code'] => -1, $L['msg'] => $T['missing_path']], JSON_UNESCAPED_UNICODE));
397
}
398

399
$access_token = getAccessToken($appid, $appsecret);
400
$url = '';
401
$postData = [];
402

403
switch ($type) {
404
    case 'a':
405
        $finalPath = $path . (!empty($scene) ? '?' . $scene : '');
406
        $url = "https://api.weixin.qq.com/wxa/getwxacode?access_token=" . $access_token;
407
        $postData = ['path' => $finalPath, 'width' => $width, 'auto_color' => $auto_color, 'is_hyaline' => $is_hyaline];
408
        if ($lineColorArray) $postData['line_color'] = $lineColorArray;
409
        break;
410
    case 'b':
411
        $finalScene = !empty($scene) ? $scene : '0';
412
        $url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=" . $access_token;
413
        $postData = ['scene' => $finalScene, 'page' => $path, 'width' => $width, 'auto_color' => $auto_color, 'is_hyaline' => $is_hyaline, 'env_version' => $env_version];
414
        if ($lineColorArray) $postData['line_color'] = $lineColorArray;
415
        break;
416
    case 'c':
417
        $finalPath = $path . (!empty($scene) ? '?' . $scene : '');
418
        $url = "https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=" . $access_token;
419
        $postData = ['path' => $finalPath, 'width' => $width];
420
        break;
421
}
422

423
$ch = curl_init();
424
curl_setopt($ch, CURLOPT_URL, $url);
425
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
426
curl_setopt($ch, CURLOPT_POST, true);
427
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($postData));
428
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
429
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
430
$response = curl_exec($ch);
431
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
432
curl_close($ch);
433

434
$decoded = json_decode($response, true);
435
if ($decoded && isset($decoded['errcode']) && $decoded['errcode'] != 0) {
436
    die(json_encode([$L['code'] => -1, $L['msg'] => $T['qrcode_generate_fail'] . $decoded['errmsg'], $L['errcode'] => $decoded['errcode']], JSON_UNESCAPED_UNICODE));
437
}
438
if ($httpCode != 200) {
439
    die(json_encode([$L['code'] => -1, $L['msg'] => $T['http_request_fail'] . $httpCode], JSON_UNESCAPED_UNICODE));
440
}
441

442
header('Content-Type: image/png');
443
echo $response;
444
?>