Codeigniter global variable within controller

Question

I have a controller with a couple of methods and they all have the same variable within them. I am looking for a way to have them share the same variable. What is the best way to do this?

What I have now:

class Example extends CI_Controller{
  public function test{
    $variable = "awesome";
  }

  public function demo{
    $variable = "awesome";
  }

}

possible duplicate of PHP/CodeIgniter - Setting variables in __construct(), but they're not accessible from other functions — jondavidjohn
– jondavidjohn, Commented Aug 22, 2011 at 18:42
Misleading. Global usually means application scope not class/instance scope. — MJVC
– MJVC, Commented Jan 28, 2017 at 19:46

65Fbef05 · Accepted Answer · 2011-08-22 18:43:58Z

34

How about...

class Example extends CI_Controller
{

  public $variable = "awesome";

  public function test()
  {
    echo $this->variable; // awesome
  }

  public function demo()
  {
    echo $this->variable; // awesome
  }

}

answered Aug 22, 2011 at 18:43

65Fbef05

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10 Comments

ThomasReggi Over a year ago

What is the difference between declaring $variable public or private?

65Fbef05 Over a year ago

You can access a public property in an object directly via Object::variable or $object->variable - A private property you cannot and can only access it from withing the class.

jondavidjohn Over a year ago

public/private controls whether or not inheriting classes derived from this one have direct access to this property.

65Fbef05 Over a year ago

Here's a good read on OOP as it applies to PHP: http://php.net/manual/en/language.oop5.php

tereško Over a year ago

@ThomasReggi .. and do you really think that masons learn by building skyscrapers ? Leave the frameworks alone till you understand the basics.

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