Constructors and Destructors

时间:2015-05-04 15:16:54   收藏:0   阅读:104

Constructor

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

  parent::__construct() to run a parent constructor

<?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();
?>

 

  

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