php use parent constructor code example

Example 1: php contruct parent

<?php
class BaseClass {
    function __construct() {
        print "In BaseClass constructor\n";
    }
}

class SubClass extends BaseClass {
    function __construct() {
        parent::__construct();
        print "In SubClass constructor\n";
    }
}

class OtherSubClass extends BaseClass {
    // inherits BaseClass's constructor
}

// In BaseClass constructor
$obj = new BaseClass();

// In BaseClass constructor
// In SubClass constructor
$obj = new SubClass();

// In BaseClass constructor
$obj = new OtherSubClass();
?>

Example 2: php call parent constructor

<?php
class BaseClass {
   function __construct() {
       print "En el constructor BaseClass\n";
   }
}

class SubClass extends BaseClass {
   function __construct() {
       parent::__construct();
       print "En el constructor SubClass\n";
   }
}

Example 3: php constructor

__construct ([ mixed $args = "" [, $... ]] ) : void