Clearing POST array fully

Question

I want clear   POST array content fully  all examples what I see in internet  looks like this   if  count   POST   gt  0        foreach    POST as  k  gt  v            unset   POST  k              Tell please  this variant will be not more better   Point of view as saving resources   if  count   POST   gt  0           POST   array        or not

User · Answer

To answer  why  someone might use it  I was tempted to use it since I had the   POST values stored after the page refresh or while going from one page to another  My sense tells me this is not a good practice  but it works nevertheless

User · Answer

To unset the   POST variable  redeclare it as an empty array     POST   array

User · Answer

You can use a combination of both unset   and initialization  unset   POST     POST   array     Or in a single statement  unset   POST      POST   array       POST   array     But what is the reason you want to do this

User · Answer

Yes  that is fine    POST is just another variable  except it has  super global scope     POST   array         will be quite enough  The loop is useless  It s probably best to keep it as an array rather than unset it  in case other files are attempting to read it and assuming it is an array

User · Answer

It may appear to be overly awkward  but you re probably better off unsetting one element at a time rather than the entire   POST array  Here s why  If you re using object-oriented programming  you may have one class use   POST  alpha   and another class use   POST  beta    and if you unset the array after first use  it will void its use in other classes  To be safe and not shoot yourself in the foot  just drop in a little method that will unset the elements that you ve just used  For example   private function doUnset         unset   POST  alpha         unset   POST  gamma         unset   POST  delta         unset   GET  eta         unset   GET  zeta         Just call the method and unset just those superglobal elements that have been passed to a variable or argument  Then  the other classes that may need a superglobal element can still use them      However  you are wise to unset the superglobals as soon as they have   been passed to an encapsulated object

User · Answer

The solutions so far don t work because the POST data is stored in the headers   A redirect solves this issue according this this post   How to delete   POST variable upon pressing   39 Refresh  39  button on browser with PHP

[php] Clearing _POST array fully

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