如何将$ _SERVER ['REQUEST_METHOD']并置为字符串

Question

This is my code,

## GET REQUEST POSTING TO PAGE ( /example.php?name=something )##

## Expected Output : something

$var = '$_'.strtoupper($_SERVER['REQUEST_METHOD']);// concatenating with '$_'


var_dump($var."['name']");             

echo '--<br>';

var_dump($var['name']);          

echo '--<br>';


print_r($var."['name']");    //not working     

echo '--<br>';

print_r($var['name']);     //not working     

Any idea how to make this work ? what is the correct way ?

Answer 1

Use double $

$var = "_" . $_SERVER['REQUEST_METHOD'];

var_dump($$var);

But this is "dirty hack"

For good code use if or switch for init variable.

switch($_SERVER['REQUEST_METHOD']) {
  case "POST":
   $var = $_POST;
  break;
  case "GET":
  default:
   $var = $_GET;
  break;
}