0210220总结 微信h5分享解析

使用到的主要函数

//curl获取请求文本内容
function get_curl_contents($url, $method ='GET', $data = array()) {
if ($method == 'POST') {
//使用crul模拟
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
//允许请求以文件流的形式返回
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_DNS_CACHE_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_URL, $url);
$result = curl_exec($ch); //执行发送
curl_close($ch);
}else {
if (ini_get('allow_fopen_url') == '1') {
$result = file_get_contents($url);
}else {
//使用crul模拟
$ch = curl_init();
//允许请求以文件流的形式返回
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
//禁用https
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_URL, $url);
$result = curl_exec($ch); //执行发送
curl_close($ch);
}
}
return $result;
}
//获取微信公从号access_token
function wx_get_token() {
$AppID = 'wxc9dc74da0aac5eb2';//AppID(应用ID) // wx11ca4d1dafc98df5
$AppSecret = '03bf5766ca7cedf6af650e3e7677d13e';//AppSecret(应用密钥) f8602841ec6c540e0aae2d732d0beae9
$url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$AppID.'&secret='.$AppSecret;
$res = get_curl_contents($url);
$res = json_decode($res, true);
//这里应该把access_token缓存起来，至于要怎么缓存就看各位了，有效期是7200s
return $res['access_token'];
}
//获取微信公从号ticket
function wx_get_jsapi_ticket() {
$url = sprintf("https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=%s&type=jsapi", wx_get_token());
$res = get_curl_contents($url);
$res = json_decode($res, true);
//这里应该把access_token缓存起来，至于要怎么缓存就看各位了，有效期是7200s
return $res['ticket'];
}
function createNonceStr($length = 16) {
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}

$wx = array();
//生成签名的时间戳
$wx['timestamp'] = time();
$wx['appid'] = 'wxc9dc74da0aac5eb2'; // wxc9dc74da0aac5eb2
//生成签名的随机串
$wx['noncestr'] = createNonceStr();
//jsapi_ticket是公众号用于调用微信JS接口的临时票据。正常情况下，jsapi_ticket的有效期为7200秒，通过access_token来获取。
$wx['jsapi_ticket'] = wx_get_jsapi_ticket();
//分享的地址，注意：这里是指当前网页的URL，我这里直接用了当前域名报错63002,invalid signature
// $wx['url'] = 'http://lt.cnseen.com/detail/75';
$wx['url'] = 'http://'.request()->host().request()->url();
$string = sprintf("jsapi_ticket=%s&noncestr=%s&timestamp=%s&url=%s", $wx['jsapi_ticket'], $wx['noncestr'], $wx['timestamp'], $wx['url']);
// dd($string);
//生成签名
$wx['signature'] = sha1($string);
// dd($wx);
$this->assign('wx',$wx);