Regarding the issue of whether subclasses will automatically call the parent class constructor
<?php
header("content-type:text/html;charset=utf-8");
class nn//This code is obvious. The class automatically calls the constructor of the parent class. . . .
{
public $name;
public function __construct()
{
echo 'I am in the nn class Constructor! <br>';
//$this->name=$iname;
}
}
class mm extends nn
{
}
$p=new mm;
?> ;
