The problem of defining a static variable in function

Source: Internet
Author: User
$count = 5;function get_count() {        static $count=0;        return $count++;}echo get_count();echo get_count();

Output: 0 1
Static in function, do not initialize the second time?

Reply content:

$count = 5;function get_count() {        static $count=0;        return $count++;}echo get_count();echo get_count();

Output: 0 1
Static in function, do not initialize the second time?

Another important feature of the scope of variables in PHP is the static variable (the statics variable). Static variables exist only in the local function domain and are initialized only once, and when the program executes away from this scope, its value does not disappear, and the result of the last execution is used.

Static variables exist only in local function domains, but their values are not lost when program execution leaves this scope

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