+ Why does the echo come out after the code is sent to the server? +

+ Why is the echo not a + REST server after the code is sent to the server?

I use postman to send a request to our rest api. some parameters are single strings, and one parameter is in the form of vehicletype = 1 + 22 + 8, I have the echo vehicletype value in it, and the output is 1 22 8. if vehicletype =, the echo vehicletype result is. why?

Reply to discussion (solution)

Var_dump () to see what the result is.

Urlencode?

+ Is the number transmitted in the url equal to or equal to a space?
Encode the value url before uploading it.

Please encode... this will be automatically encoded, so you must encode it yourself before passing.