How to access a variable with random value inside a class?

Question

   class Session{
        protected $git =  md5(rand(1,6)); 
        public function __construct($config = array())
        {
           //// some code
            $ses_id = $this->git;

        }
        public function _start_session()
        {
           //code again..
        }
      }

Here I can't assign a random value like this to variable called git. How can I do this if it is possible? That random value need to be first time generated value only till the time it converts to Null.

You cannot write expression(assign value calling by function) to set value of variable outside function of a class.So you need to do that inside function of this class.Constructor is best choice here. — Shaiful Islam
– Shaiful Islam, Commented May 15, 2015 at 5:34
here the issue is ..for every time constructor is called the value of git will change...but i need the first time generated value only every time..how can i do this. — John Sk
– John Sk, Commented May 15, 2015 at 6:08

Anonymous Duck · Accepted Answer · 2015-05-15 05:18:57Z

4

Perform random inside your constructor,

class Session{
        protected $git; 
        public function __construct($config = array())
        {
           //// some code
           $this->git =  md5(rand(1,6));
           $ses_id = $this->git;

        }
        public function _start_session()
        {
           //code again..
        }
      }

answered May 15, 2015 at 5:18

Anonymous Duck

3,0081 gold badge14 silver badges35 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

John Sk Over a year ago

here the issue is ..for every time constructor is called the value of git will change...but i need the first time generated value only every time..how can i do this.

Anonymous Duck Over a year ago

to solve this, dont call session class multiple times, just reuse it. When your calling the constructor, your instantiating the class and creating a new instance of it.

vsogrimen · Accepted Answer · 2015-05-15 05:28:20Z

0

Try setting the value of your variable in your constructor.

constructor will run every time you create an instance of your class.

try this code:

      class Session{
        protected $git;
        public function __construct($config = array())
        {
           //// some code
           $this->git = md5(rand(1,6));
        }
        public function _start_session()
        {
           //code again..
        }
      }

:)

answered May 15, 2015 at 5:28

vsogrimen

4562 silver badges7 bronze badges

1 Comment

John Sk Over a year ago

here the issue is ..for every time constructor is called the value of git will change...but i need the first time generated value only every time..how can i do this.

Sourabh Kumar Sharma · Accepted Answer · 2015-05-15 06:12:49Z

0

Declare a variable inside a class,initialize the variables in class inside a constructor, which sets the variables once the object for that class is declared anywhere in the code.

I updated this answer if you want to do not change your session variable on each constructor call then use the below procedure.

class Session{
       protected $git;
        public function __construct($config = array())
        {
           $this->git  =  md5(rand(1,6)); 
           if(!isset($_SESSION['ses_id']))
            {
            $_SESSION['ses_id'] = $this->git;
            }
        }
        public function _start_session()
        {
           //code again..
        }
      }

I hope this helps you.

edited May 15, 2015 at 6:12

answered May 15, 2015 at 5:24

Sourabh Kumar Sharma

2,8273 gold badges27 silver badges33 bronze badges

3 Comments

Darren Over a year ago

You declare it in the class and instantiate it in the constructor.

John Sk Over a year ago

here the issue is ..for every time constructor is called the value of git will change...but i need the first time generated value only every time..how can i do this.

Sourabh Kumar Sharma Over a year ago

@JohnSk, i have updated my answer please check that, now you will be able to have a constant random variable in the session that was generated on the first call of the constructor.

Ulver · Accepted Answer · 2015-05-15 07:07:36Z

0

Try this using a global variable to track the random number:

class Session{
    protected $git;
    public function __construct($config = array())
    {
        //// some code
        if (!isset($GLOBALS['random_val'])) {
            $GLOBALS['random_val'] = md5(rand(1,6));
        }

        $this->git = $GLOBALS['random_val'];
        $ses_id = $this->git;
        var_dump("Session ID: ".$ses_id);

    }

    public function _start_session()
    {
        //code again..
    }
}


$ses1 = new Session(); // Outputs string(44) "Session ID: 1679091c5a880faf6fb5e6087eb1b2dc"
$ses2 = new Session(); // Outputs string(44) "Session ID: 1679091c5a880faf6fb5e6087eb1b2dc"

answered May 15, 2015 at 7:07

Ulver

9058 silver badges13 bronze badges

Collectives™ on Stack Overflow

How to access a variable with random value inside a class?

4 Answers 4

2 Comments

1 Comment

3 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

2 Comments

1 Comment

3 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related