Get the solution ↓↓↓
With this code I can get response of time:
$tBefore = new DateTime();
// curl get data
$tAfter = new DateTime();
But this code return to me sum of send and receive time.
I want to get send and receive time separate.
Example:
Send: From my server -> To another server // How long?
// Process on another server
Receive: From another server -> To my server // How long?
You won't be able to achieve this precisely.
curl (or any HTTP request) doesn't know when a request is being received by the remote server. No "thanks for the request, I'll get back to you when I'm done" packet is sent.
Most of the time, a HTTP request takes a few milliseconds round-trip. If an additional response (with the thank you) would be sent, the real response would follow immediately.
Also, HTTP (v1 at least) is always a ping-pong protocol. This means, that one request always gets one response. Sure, it could be implemented, but this is not in the standard and would not be used pretty much.
Anyway, the only way you could achieve this is by letting the remote server send along the time, the request was received and the time, the response is being sent out - for example in a custom header. But this would require both servers to be in perfect sync time-wise. But this is hard to achieve if not even out of your hands. Even if both servers use NTP, for latency reasons to the time server, differences up to 200ms could occur.
So, if your local server is a tad bit behind the remote server, your request time could actually be negative
Our community is visited by hundreds of web development professionals every day. Ask your question and get a quick answer for free.
Find the answer in similar questions on our website.
Do you know the answer to this question? Write a quick response to it. With your help, we will make our community stronger.
PHP (from the English Hypertext Preprocessor - hypertext preprocessor) is a scripting programming language for developing web applications. Supported by most hosting providers, it is one of the most popular tools for creating dynamic websites.
The PHP scripting language has gained wide popularity due to its processing speed, simplicity, cross-platform, functionality and distribution of source codes under its own license.
https://www.php.net/
Welcome to the Q&A site for web developers. Here you can ask a question about the problem you are facing and get answers from other experts. We have created a user-friendly interface so that you can quickly and free of charge ask a question about a web programming problem. We also invite other experts to join our community and help other members who ask questions. In addition, you can use our search for questions with a solution.
Ask about the real problem you are facing. Describe in detail what you are doing and what you want to achieve.
Our goal is to create a strong community in which everyone will support each other. If you find a question and know the answer to it, help others with your knowledge.