php variable scope

Question

i\'m confused about the php variable scope. such as:

while(true){
    $var = \"yes , it is a test!\";
  }
  printf($var)

the $var

Answer 1

If you do while(true) you will not get out of the while, so it wouldn't matter. But if you would have a real expression, something like this (this is a useless example, i know)

$i=0
while($i<10){ 
   $var = "yes , it is a test!"; 
   $i++;
 } 
 printf($var);

Will just work. There is no special "while" variable scope, the printf will print your string. check : http://php.net/manual/en/language.variables.scope.php