Meaning of php , when parsing a json - php

Question

I have seen that after url for example
Please help me tu understand this, i have tried to find somewhere else but nothing
What does" php?later_word=" mean, and how to do that

Answer 1

So, you wan't to do the same as you said in the comment section on your first post.
So here a short resume how you can use GET paremter. Lets say, you have a index.html file. Create a link in it, for example:
Click here
So, in your filename.php you can do:
<?php
$yourvalue = $_GET["key"];
?>
So, this means you can acces this key from the url with $_GET. In this example, $yourvalue would contain "AnythingYouWant". So if you would do the following:
<?php
$yourvalue = $_GET["key"];
echo "Here is your $yourvalue";
?>
The output would be:
Here is your AnythingYouWant.
This is useful because PHP variables are not saved when you click on a link for example.
But dude, we posted you a link to the official description... normally you would find this answer by yourself. I really recommend you to read more tutorials, this are the basics of basics.

Answer 2

I know this can seem overwhelming, so I'll give you some pointers on which parts of internet basics you seem to be unclear about:
URLs. Find out what a URL is, what it is made of (scheme, path/suffix, domain name, query, port, and also the optional username/password in URLs might be good things to know about).
HTTP requests and in particular HTTP "methods". The most common you need to know are GET and POST, but there are many others, and you should have a basic understanding so you know how to look up a new one.
Web servers (i.e. HTTP servers, which at their most basic show static files of a web page). Usually people use Apache or NGinx as servers
Scripting languages to run scripts when someone sends a request to a web server. Examples are Python, Ruby, Perl and, in your case, PHP.
All of these work together to present a modern web site that shows more than just static text and pictures. #1 in that list is something you already need to know as an advanced user of any web browser, understanding 2 and 3 kind of goes hand-in-hand with making even simple web sites of your own, and once you understand that, you can advance to one of the languages mentioned in #4 to make a web site that can do something with user input.