Programming PHP

first time the function is called. To declare a function variable static, use the static
keyword at the variable’s first use. Typically, the first use of a static variable is to
assign an initial value:
static var [= value][, ... ];
In Example 3-4, the variable $count is incremented by one each time the function is
called.
Example 3-4. Static variable counter
function counter( ) {
static $count = 0;
return $count++;
}
for ($i = 1; $i