use function __construct() for static functions?

Question

I wanna to use this way but i have a problem , function __construct() dosn't work ? Why ?

class user{

  function __construct(){
    define('HI', 'hello');
  }

  static function say_hi(){

     echo HI ;
  }
}

user::say_hi();// Out put should be : hello

Possible duplicate of [Call function inside \_\_construct with php](http://stackoverflow.com/questions/6533724/call-function-inside-construct-with-php) — Amy Neville, Apr 25 '16 at 10:03

score 1 · Answer 1 · answered Apr 25 '16 at 09:03

1

You can do this way only if you have PHP version >= 7

class User{

  function __construct(){
    define('HI', 'hello');
  }

  static function say_hi(){

     echo HI ;
  }
}

(new User())::say_hi();

answered Apr 25 '16 at 09:03

Narendrasingh Sisodia

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No i don't use . What's the similar way when use a static function ? – A.kapoor Apr 25 '16 at 09:06
Then define it globally within class or outside of the class something like as `const HI = 'hello';` or simply call the class within static function – Narendrasingh Sisodia Apr 25 '16 at 09:09

score 1 · Accepted Answer · answered Apr 25 '16 at 09:07

1

You have to create a new instance of class user inside say_hi() method. When you create the instance inside say_hi() method, it will call the constructor method and subsequently define the constant HI.

So your code should be like this:

class user{
    function __construct(){
        define('HI', 'hello');
    }

    static function say_hi(){
        new user();
        echo HI ;
    }
}

user::say_hi();

Output:

hello

answered Apr 25 '16 at 09:07

Rajdeep Paul

16,887
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Thanks for solotion :) – A.kapoor Apr 25 '16 at 09:21

score 0 · Answer 3 · answered Apr 25 '16 at 08:57

0

A constructor is only called when initializing a class for example $user = new user();. When calling a static function a class isn't initialized thus the constructor is not called.

answered Apr 25 '16 at 08:57

Daan

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Whats's the solotion ?i need this way ! – A.kapoor Apr 25 '16 at 09:00

use function __construct() for static functions?

3 Answers3