php代码执行序列

Question

I have a question about how does php code execute.

I am now only using php to connect to the mysql DB for iOs APP. So I create different APIs at php side. Then, at APP side, just submit post or get request to inquiry or update the DB.

So at php side, I did DB inquiry or update then return a json result to the APP.

Now I have a function, it does the following job:

function a(){
  1.Insert a record to the DB;
   if (insert successful){
      2. $this->echoJson ('Succeed','New Record has added');

      3. then send email to several email addresses.(using PHPMailer-master)
    }

}

When my APP side get the json data that indicates insertion is successful. The app will jump to another page.

The function works well. The only problem is step 3 takes around 5 seconds to run. Step 1 and 2 is very fast. It seems for the php side, it only returns the json data when all the codes have been executed. So my APP side needs to wait for 5 seconds to get the response. But I only care about if the insertion is successful.

Is it possible to return the json data once the insertion is successful then do the sending?

I am not sure if I explain the problem clearly.

In summary, I found the execution order is step 1 step 3 step 2. I want to make the order as step 1 step 2 step 3.

Thank you.

Answer 1

Move your PHPMailer funtion to another file (lets say send.php, which can be reached internally by http://example.com/send.php). Then you can make a curl request with a tiny timeout function that actually sends the mail.

Step 3 becomes:

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'http://example.com/send.php');
curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);
curl_setopt($ch, CURLOPT_TIMEOUT_MS, 1);

curl_exec($ch);
curl_close($ch);