CODEWITHSUNDEEP
php
Steven
Steven

Reputation: 13975

PHP watch a variable?

I am wondering if there is a way to watch for variable changes in PHP. For example let's say I have a class

class Chicken
{
    public $test = "hi";
}

$test = new Chicken();
$test->test = "hello"; // I want to know when this happens

Is there anyways to determine if a variable was changed?

Upvotes: 0

Views: 1008

Answers (1)

John Conde
John Conde

Reputation: 219804

Make this a private variable and then use the __set() magic method to filter all member variable value changes.

class Chicken
{
    private $test = "hi";

    public function __set($name, $value) {
      echo "Set:$name to $value";
      $this->$name = $value;
    }

    public function getTest() {
      return $this->test;
    }

    // Alternative to creating getters for all private members
    public function __get($name) {
      if (isset($this->$name)) {
        return $this->$name;
      }
      return false;
    }
}

$test = new Chicken();
$test->test = "hello"; // prints: Set: test to hello

See it in action

Upvotes: 9

Related Questions