Question

My question is,

I have a variable and this holds a list of elements – ie. indexed array.

var $myarr;
//added smt. to array..

...

$myarr = Array();

Where myarr’s elements go?
Which one is best, above or below?
Shall I equalize to NULL before to equalize Array()?

var $myarr;
//added smt. to array..

...
$myarr = NULL;
$myarr = Array();

Answer 1

$myarr = Array() will set the value of the variable $myarr to an empty array. It does not matter what was there before, whatever it was it is now gone*. There’s no difference with first setting $myarr to null, it’s just one more (pointless) step. It does not change anything about the outcome.

_{* or at the very least will be garbage collected sometime soon}