What are the potential pitfalls of not using $this->variable to access class variables in PHP methods?

When not using $this->variable to access class variables in PHP methods, you run the risk of creating local variables with the same name as the class variables, leading to potential conflicts and unexpected behavior. To avoid this issue, always use $this->variable to explicitly reference class variables within methods. 

class MyClass {
    private $variable;

    public function setVariable($value) {
        $this->variable = $value;
    }

    public function getVariable() {
        return $this->variable;
    }
}

Keywords

$this variable class methods PHP

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