Does PHP automatically do urldecode() on $_POST?

问题

According to http://php.net/manual/en/function.urldecode.php, PHP does urldecode() on $_GET and on $_REQUEST (which contains $_POST).

But is directly calling $_POST already decoded?

回答1:

Yes, all the parameters you access via $_GET and $_POST are decoded.

The reason the urldecode() documentation doesn't mention $_POST is because the POST data might not be URL-encoded in the first place. It depends on whether the POST data is submitted in application/x-www-form-urlencoded format or multipart/form-data format.

But all this is transparent to the application.

The documentation of $_GET does mention this explicitly, though.

Note:
The GET variables are passed through urldecode().

来源：https://stackoverflow.com/questions/35516824/does-php-automatically-do-urldecode-on-post