×
Night mode
Sign up
Login
child class without constructor inherits BaseClass's constructor
If there is no constructor in child class, then parent class constructor will be called (when appropriate parameters are passed) 
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();
by Valeri Tandilashvili
4 years ago
PHP
OOP
PHP official doc
1
Pro tip: use ```triple backticks around text``` to write in code fences