How does PHP determine whether a GET request or a POST request?

How does PHP determine whether a GET request or a POST request?

First get the "REQUEST_METHOD" in the full variable "$_SERVER"; then use the function "strtoupper" to convert the value to uppercase; finally determine if the value is equal to GET, it is a GET request, and POST is the same reason.

Sample code

<?php
if($REQUEST_METHOD == “POST”){
echo "是POST过来滴";

}elseif($REQUEST_METHOD == “GET”){
echo "是GET过来滴";
}else{
echo "我也不知道怎么过来滴";
}

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