about how initialize is implemented

Suppose you have Class A, B, Base,a, b all inherit base,
A, B allows a method initialize ();

If New N times:
$obj = new A ();
$obj = new A ();
$obj = new A ();
$obj = new B ();
$obj = new B ();
$obj = new B ();

Executes only once a->initialize (); And once B->initialize ();

Initialize is primarily an alternative to the __construct approach in the framework.
Phalcon implements this function, but Phalcon is the framework written by C, can pure PHP achieve this effect?

Reply to discussion (solution)

Class Bass {  function __construct () {    $this->_initialize ();  }  function _initialize () {    static $v;    @ $v + +;    if ($v = = 1 && method_exists ($this, ' Initialize ')) $this->initialize ();  }} Class A extends Bass {  function initialize () {    echo __class__;  }} Class B extends Bass {  function initialize () {    echo __class__;  }} $obj = new A (), $obj = new A (), $obj = new A (), $obj = new B (), $obj = new B (); $obj = new B ();

Ab

Class Bass {  function __construct () {    $this->_initialize ();  }  function _initialize () {    static $v;    @ $v + +;    if ($v = = 1 && method_exists ($this, ' Initialize ')) $this->initialize ();  }} Class A extends Bass {  function initialize () {    echo __class__;  }} Class B extends Bass {  function initialize () {    echo __class__;  }} $obj = new A (), $obj = new A (), $obj = new A (), $obj = new B (), $obj = new B (); $obj = new B ();

Ab

@ $v + +;
Why do you want to add "@" in accordance with this sentence?

