What about the data error when POST transfers json data to the background?

This article mainly explains "what to do when POST transmits json data to the background". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what to do when the data goes wrong when POST transfers json data to the background"!

POST passes json data to the backend. All the symbols in json have been escaped, so you need to transfer them back first:

Example:

This is the JSON data passed to the background:

"[" 10 "," 100 "," 124 "," 125 "," 162 "]"

You need to first restore with htmlspecialchars_decode of php, htmlspecialchars_decode (variable):

"[" 10 "," 100 "," 124 "," 125 "," 162 "]"

Then use json_decode to transcode correctly.

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