What are some potential pitfalls to be aware of when transitioning from imperative to object-oriented programming in PHP?

One potential pitfall when transitioning from imperative to object-oriented programming in PHP is the misuse of global variables. In imperative programming, global variables are commonly used, but in object-oriented programming, it's best to encapsulate data within objects to maintain better control and organization. 

// Before transitioning:
$globalVar = 10;

function incrementGlobalVar() {
    global $globalVar;
    $globalVar++;
}

// After transitioning:
class Counter {
    private $count;

    public function __construct($initialCount) {
        $this->count = $initialCount;
    }

    public function increment() {
        $this->count++;
    }

    public function getCount() {
        return $this->count;
    }
}

$counter = new Counter(10);
$counter->increment();
echo $counter->getCount(); // Output: 11

Keywords

imperative programming object-oriented programming PHP inheritance encapsulation

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