In http requests, if the parameter value is in Chinese, it is best to use the urlencode/rawurlencode function.
It is also best to use it if there is a plus sign in the parameter value, otherwise when receiving in the background, the + sign will become a space, causing unnecessary trouble.
Note: The difference between urlencode and rawurlencode: urlencode encodes spaces as a plus sign "+", and rawurlencode encodes spaces as a plus sign "%20".
The above introduces the Http request urlencode/rawurlencode of Php, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.