PHP gets the external chain address of wechat applet and applet store

Official documents

What needs to be noted here is   The document says  path Parameters should be filled __plugin__ To ? Path address between
My wechat store Filling in this path will report an error 40165     Parameters path Fill in the wrong
Actual filling ? The previous path address is correct I don't know if there is such a difference between wechat apps and app stores
query Fill in ? Address after

I get the address of the outside chain of the live broadcast room

//  obtain  access_token
$getUrl = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid= Your app or app store appid&secret= Your app or app store secret';
$access_token_arr = curl($getUrl);
$access_token = $access_token_arr['access_token'];
//  Outer chain production request address 
$postUrl = 'https://api.weixin.qq.com/wxa/generate_urllink?access_token=' . $access_token;
//  External chain request parameters 
$data = array(
    "path" => " Applet path  ?  Previous ",
    "query" => " Applet path  ?  After that ",
    "expire_type" => 1,
    "expire_interval" => 1,
    "env_version" => "release",
);

echo '<pre>';
var_dump(curl($postUrl, json_encode($data), 1));
die;


/**
 * $url      Request address 
 * $params  GET Request for  false POST The request is a data parameter 
 * $ispost  GET Request for  0 POST Request for  1
 */
function curl($url, $params = false, $ispost = 0)
{
    $httpInfo = array();
    // initialization 
    $ch = curl_init();
    /*CURL_HTTP_VERSION_NONE ( The default value is , Give Way  cURL  Decide which version to use ),CURL_HTTP_VERSION_1_0 ( Compulsory use  HTTP/1.0) or CURL_HTTP_VERSION_1_1 ( Compulsory use  HTTP/1.1).
    */
    curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
    //  Judge php edition   If 5.6+  It contains CURLFILE  This class  , If 5.6- The settings are as follows , To solve the problem php Different versions of the problem 
    if (class_exists('\CURLFile')) {
        curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true);
    } else {
        if (defined('CURLOPT_SAFE_UPLOAD')) {
            curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false);
        }
    }
    // stay HTTP The request contains a "User-Agent: " The string of the header .
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36');
    // Time to try to connect and wait , In Milliseconds . Set to 0, Then wait indefinitely .  If  libcurl  Compile using the system standard name parser （ standard system name resolver）, That part of the connection still uses the timeout solution in seconds , The minimum timeout is still one second .
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 60);
    //  allow  cURL  The maximum number of seconds a function can execute .
    curl_setopt($ch, CURLOPT_TIMEOUT, 60);
    //TRUE  take curl_exec() The information obtained is returned as a string , Instead of direct output .
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    //TRUE  Will return according to the server  HTTP  In the header  "Location: "  Redirect .（ Be careful ： It's recursive ,"Location: "  Send it a few times, redirect it a few times , Unless set  CURLOPT_MAXREDIRS, Limit the maximum number of redirections .）.
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    //FALSE  prohibit  cURL  Verify peer certificate （peer's certificate）.
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    // Set to  1  It's checking the server SSL Whether there is a common name in the certificate (common name). translator's note ： Common name (Common Name) Generally speaking, it is to fill in the application you are going to apply for SSL Domain name of certificate  (domain) Or subdomain (sub domain).  Set to  2, Will check if the common name exists , And whether it matches the provided host name . 0  For not checking the name .  In the production environment , This value should be  2（ The default value is ）.
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    // Set the encoding format , If it is blank, it means that all formats are supported 
    curl_setopt($ch, CURLOPT_ENCODING, '');
    if ($ispost) {
        // TRUE  Will send  POST  request , The type is ：application/x-www-form-urlencoded, yes  HTML  The most common type of form submission .
        curl_setopt($ch, CURLOPT_POST, true);
        // All data use HTTP In the agreement  "POST"  Operation to send 
        curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        // Need to get  URL  Address , It can also be in curl_init()  When initializing a session .
        curl_setopt($ch, CURLOPT_URL, $url);
    } else {
        if ($params) {
            curl_setopt($ch, CURLOPT_URL, $url . '?' . $params);
        } else {
            curl_setopt($ch, CURLOPT_URL, $url);
        }
    }
    $response = curl_exec($ch);
    if ($response === FALSE) {
        //echo "cURL Error: " . curl_error($ch);
        return false;
    }
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $httpInfo = array_merge($httpInfo, curl_getinfo($ch));
    curl_close($ch);
    return json_decode($response, true);
}