Why is the data not being sent in json format?

Question

PHP

Good afternoon. Unfortunately, I don’t fully understand the php + js bundle, and, accordingly, it’s hard to navigate with ajax. When I pass data from the form and process it, the data is transferred well, but if I send data using then I get an error
if(!empty($_POST)){ }
if(isset($_POST['name'])){ }

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

How can I check what data my ajax script receives?
It just turns out that the second option is more representative for me, since I need to send several forms from one page.

Answer 1

In Google Chrome Ctrl+Shift+I Network tab - here you will see what data the php script sends

Answer 2

I had the same problem the other day.
And I'm willing to bet it's the quotation marks.
This build helped me.
addslashes(json_encode($video,JSON_HEX_QUOT));